40721940

素因数分解:

$2^2\times 3^7\times 5^1\times 7^2\times {\mathrm{19}}^1$

素因数の和:63

約数の個数: 288

約数和(自身を含む): 157046400

約数和(自身を除く): 116324460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 30, 35, 36, 38, 42, 45, 49, 54, 57, 60, 63, 70, 76, 81, 84, 90, 95, 98, 105, 108, 114, 126, 133, 135, 140, 147, 162, 171, 180, 189, 190, 196, 210, 228, 243, 245, 252, 266, 270, 285, 294, 315, 324, 342, 378, 380, 399, 405, 420, 441, 486, 490, 513, 532, 540, 567, 570, 588, 630, 665, 684, 729, 735, 756, 798, 810, 855, 882, 931, 945, 972, 980, 1026, 1134, 1140, 1197, 1215, 1260, 1323, 1330, 1458, 1470, 1539, 1596, 1620, 1701, 1710, 1764, 1862, 1890, 1995, 2052, 2187, 2205, 2268, 2394, 2430, 2565, 2646, 2660, 2793, 2835, 2916, 2940, 3078, 3402, 3420, 3591, 3645, 3724, 3780, 3969, 3990, 4374, 4410, 4617, 4655, 4788, 4860, 5103, 5130, 5292, 5586, 5670, 5985, 6156, 6615, 6804, 7182, 7290, 7695, 7938, 7980, 8379, 8505, 8748, 8820, 9234, 9310, 10206, 10260, 10773, 10935, 11172, 11340, 11907, 11970, 13230, 13851, 13965, 14364, 14580, 15309, 15390, 15876, 16758, 17010, 17955, 18468, 18620, 19845, 20412, 21546, 21870, 23085, 23814, 23940, 25137, 25515, 26460, 27702, 27930, 30618, 30780, 32319, 33516, 34020, 35721, 35910, 39690, 41553, 41895, 43092, 43740, 46170, 47628, 50274, 51030, 53865, 55404, 55860, 59535, 61236, 64638, 69255, 71442, 71820, 75411, 76545, 79380, 83106, 83790, 92340, 96957, 100548, 102060, 107163, 107730, 119070, 125685, 129276, 138510, 142884, 150822, 153090, 161595, 166212, 167580, 178605, 193914, 207765, 214326, 215460, 226233, 238140, 251370, 277020, 290871, 301644, 306180, 323190, 357210, 377055, 387828, 415530, 428652, 452466, 484785, 502740, 535815, 581742, 646380, 678699, 714420, 754110, 831060, 904932, 969570, 1071630, 1131165, 1163484, 1357398, 1454355, 1508220, 1939140, 2036097, 2143260, 2262330, 2714796, 2908710, 3393495, 4072194, 4524660, 5817420, 6786990, 8144388, 10180485, 13573980, 20360970, 40721940]

約数ペア:

[(1, 40721940), (2, 20360970), (3, 13573980), (4, 10180485), (5, 8144388), (6, 6786990), (7, 5817420), (9, 4524660), (10, 4072194), (12, 3393495), (14, 2908710), (15, 2714796), (18, 2262330), (19, 2143260), (20, 2036097), (21, 1939140), (27, 1508220), (28, 1454355), (30, 1357398), (35, 1163484), (36, 1131165), (38, 1071630), (42, 969570), (45, 904932), (49, 831060), (54, 754110), (57, 714420), (60, 678699), (63, 646380), (70, 581742), (76, 535815), (81, 502740), (84, 484785), (90, 452466), (95, 428652), (98, 415530), (105, 387828), (108, 377055), (114, 357210), (126, 323190), (133, 306180), (135, 301644), (140, 290871), (147, 277020), (162, 251370), (171, 238140), (180, 226233), (189, 215460), (190, 214326), (196, 207765), (210, 193914), (228, 178605), (243, 167580), (245, 166212), (252, 161595), (266, 153090), (270, 150822), (285, 142884), (294, 138510), (315, 129276), (324, 125685), (342, 119070), (378, 107730), (380, 107163), (399, 102060), (405, 100548), (420, 96957), (441, 92340), (486, 83790), (490, 83106), (513, 79380), (532, 76545), (540, 75411), (567, 71820), (570, 71442), (588, 69255), (630, 64638), (665, 61236), (684, 59535), (729, 55860), (735, 55404), (756, 53865), (798, 51030), (810, 50274), (855, 47628), (882, 46170), (931, 43740), (945, 43092), (972, 41895), (980, 41553), (1026, 39690), (1134, 35910), (1140, 35721), (1197, 34020), (1215, 33516), (1260, 32319), (1323, 30780), (1330, 30618), (1458, 27930), (1470, 27702), (1539, 26460), (1596, 25515), (1620, 25137), (1701, 23940), (1710, 23814), (1764, 23085), (1862, 21870), (1890, 21546), (1995, 20412), (2052, 19845), (2187, 18620), (2205, 18468), (2268, 17955), (2394, 17010), (2430, 16758), (2565, 15876), (2646, 15390), (2660, 15309), (2793, 14580), (2835, 14364), (2916, 13965), (2940, 13851), (3078, 13230), (3402, 11970), (3420, 11907), (3591, 11340), (3645, 11172), (3724, 10935), (3780, 10773), (3969, 10260), (3990, 10206), (4374, 9310), (4410, 9234), (4617, 8820), (4655, 8748), (4788, 8505), (4860, 8379), (5103, 7980), (5130, 7938), (5292, 7695), (5586, 7290), (5670, 7182), (5985, 6804), (6156, 6615)]