81731160

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{569}}^1$

素因数の和:615

約数の個数: 256

約数和(自身を含む): 328320000

約数和(自身を除く): 246588840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 54, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 108, 114, 120, 126, 133, 135, 140, 152, 168, 171, 180, 189, 190, 210, 216, 228, 252, 266, 270, 280, 285, 315, 342, 360, 378, 380, 399, 420, 456, 504, 513, 532, 540, 569, 570, 630, 665, 684, 756, 760, 798, 840, 855, 945, 1026, 1064, 1080, 1138, 1140, 1197, 1260, 1330, 1368, 1512, 1596, 1707, 1710, 1890, 1995, 2052, 2276, 2280, 2394, 2520, 2565, 2660, 2845, 3192, 3414, 3420, 3591, 3780, 3983, 3990, 4104, 4552, 4788, 5121, 5130, 5320, 5690, 5985, 6828, 6840, 7182, 7560, 7966, 7980, 8535, 9576, 10242, 10260, 10811, 11380, 11949, 11970, 13656, 14364, 15363, 15932, 15960, 17070, 17955, 19915, 20484, 20520, 21622, 22760, 23898, 23940, 25605, 28728, 30726, 31864, 32433, 34140, 35847, 35910, 39830, 40968, 43244, 47796, 47880, 51210, 54055, 59745, 61452, 64866, 68280, 71694, 71820, 75677, 76815, 79660, 86488, 95592, 97299, 102420, 107541, 108110, 119490, 122904, 129732, 143388, 143640, 151354, 153630, 159320, 162165, 179235, 194598, 204840, 215082, 216220, 227031, 238980, 259464, 286776, 291897, 302708, 307260, 324330, 358470, 378385, 389196, 430164, 432440, 454062, 477960, 486495, 537705, 583794, 605416, 614520, 648660, 681093, 716940, 756770, 778392, 860328, 908124, 972990, 1075410, 1135155, 1167588, 1297320, 1362186, 1433880, 1459485, 1513540, 1816248, 1945980, 2043279, 2150820, 2270310, 2335176, 2724372, 2918970, 3027080, 3405465, 3891960, 4086558, 4301640, 4540620, 5448744, 5837940, 6810930, 8173116, 9081240, 10216395, 11675880, 13621860, 16346232, 20432790, 27243720, 40865580, 81731160]

約数ペア:

[(1, 81731160), (2, 40865580), (3, 27243720), (4, 20432790), (5, 16346232), (6, 13621860), (7, 11675880), (8, 10216395), (9, 9081240), (10, 8173116), (12, 6810930), (14, 5837940), (15, 5448744), (18, 4540620), (19, 4301640), (20, 4086558), (21, 3891960), (24, 3405465), (27, 3027080), (28, 2918970), (30, 2724372), (35, 2335176), (36, 2270310), (38, 2150820), (40, 2043279), (42, 1945980), (45, 1816248), (54, 1513540), (56, 1459485), (57, 1433880), (60, 1362186), (63, 1297320), (70, 1167588), (72, 1135155), (76, 1075410), (84, 972990), (90, 908124), (95, 860328), (105, 778392), (108, 756770), (114, 716940), (120, 681093), (126, 648660), (133, 614520), (135, 605416), (140, 583794), (152, 537705), (168, 486495), (171, 477960), (180, 454062), (189, 432440), (190, 430164), (210, 389196), (216, 378385), (228, 358470), (252, 324330), (266, 307260), (270, 302708), (280, 291897), (285, 286776), (315, 259464), (342, 238980), (360, 227031), (378, 216220), (380, 215082), (399, 204840), (420, 194598), (456, 179235), (504, 162165), (513, 159320), (532, 153630), (540, 151354), (569, 143640), (570, 143388), (630, 129732), (665, 122904), (684, 119490), (756, 108110), (760, 107541), (798, 102420), (840, 97299), (855, 95592), (945, 86488), (1026, 79660), (1064, 76815), (1080, 75677), (1138, 71820), (1140, 71694), (1197, 68280), (1260, 64866), (1330, 61452), (1368, 59745), (1512, 54055), (1596, 51210), (1707, 47880), (1710, 47796), (1890, 43244), (1995, 40968), (2052, 39830), (2276, 35910), (2280, 35847), (2394, 34140), (2520, 32433), (2565, 31864), (2660, 30726), (2845, 28728), (3192, 25605), (3414, 23940), (3420, 23898), (3591, 22760), (3780, 21622), (3983, 20520), (3990, 20484), (4104, 19915), (4552, 17955), (4788, 17070), (5121, 15960), (5130, 15932), (5320, 15363), (5690, 14364), (5985, 13656), (6828, 11970), (6840, 11949), (7182, 11380), (7560, 10811), (7966, 10260), (7980, 10242), (8535, 9576)]