278446140

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3877}}^1$

素因数の和:3921

約数の個数: 192

約数和(自身を含む): 1042406400

約数和(自身を除く): 763960260

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, 54, 57, 60, 63, 70, 76, 84, 90, 95, 105, 108, 114, 126, 133, 135, 140, 171, 180, 189, 190, 210, 228, 252, 266, 270, 285, 315, 342, 378, 380, 399, 420, 513, 532, 540, 570, 630, 665, 684, 756, 798, 855, 945, 1026, 1140, 1197, 1260, 1330, 1596, 1710, 1890, 1995, 2052, 2394, 2565, 2660, 3420, 3591, 3780, 3877, 3990, 4788, 5130, 5985, 7182, 7754, 7980, 10260, 11631, 11970, 14364, 15508, 17955, 19385, 23262, 23940, 27139, 34893, 35910, 38770, 46524, 54278, 58155, 69786, 71820, 73663, 77540, 81417, 104679, 108556, 116310, 135695, 139572, 147326, 162834, 174465, 209358, 220989, 232620, 244251, 271390, 294652, 325668, 348930, 368315, 407085, 418716, 441978, 488502, 515641, 523395, 542780, 662967, 697860, 732753, 736630, 814170, 883956, 977004, 1031282, 1046790, 1104945, 1221255, 1325934, 1465506, 1473260, 1546923, 1628340, 1988901, 2062564, 2093580, 2209890, 2442510, 2578205, 2651868, 2931012, 3093846, 3314835, 3663765, 3977802, 4419780, 4640769, 4885020, 5156410, 6187692, 6629670, 7327530, 7734615, 7955604, 9281538, 9944505, 10312820, 13259340, 13922307, 14655060, 15469230, 18563076, 19889010, 23203845, 27844614, 30938460, 39778020, 46407690, 55689228, 69611535, 92815380, 139223070, 278446140]

約数ペア:

[(1, 278446140), (2, 139223070), (3, 92815380), (4, 69611535), (5, 55689228), (6, 46407690), (7, 39778020), (9, 30938460), (10, 27844614), (12, 23203845), (14, 19889010), (15, 18563076), (18, 15469230), (19, 14655060), (20, 13922307), (21, 13259340), (27, 10312820), (28, 9944505), (30, 9281538), (35, 7955604), (36, 7734615), (38, 7327530), (42, 6629670), (45, 6187692), (54, 5156410), (57, 4885020), (60, 4640769), (63, 4419780), (70, 3977802), (76, 3663765), (84, 3314835), (90, 3093846), (95, 2931012), (105, 2651868), (108, 2578205), (114, 2442510), (126, 2209890), (133, 2093580), (135, 2062564), (140, 1988901), (171, 1628340), (180, 1546923), (189, 1473260), (190, 1465506), (210, 1325934), (228, 1221255), (252, 1104945), (266, 1046790), (270, 1031282), (285, 977004), (315, 883956), (342, 814170), (378, 736630), (380, 732753), (399, 697860), (420, 662967), (513, 542780), (532, 523395), (540, 515641), (570, 488502), (630, 441978), (665, 418716), (684, 407085), (756, 368315), (798, 348930), (855, 325668), (945, 294652), (1026, 271390), (1140, 244251), (1197, 232620), (1260, 220989), (1330, 209358), (1596, 174465), (1710, 162834), (1890, 147326), (1995, 139572), (2052, 135695), (2394, 116310), (2565, 108556), (2660, 104679), (3420, 81417), (3591, 77540), (3780, 73663), (3877, 71820), (3990, 69786), (4788, 58155), (5130, 54278), (5985, 46524), (7182, 38770), (7754, 35910), (7980, 34893), (10260, 27139), (11631, 23940), (11970, 23262), (14364, 19385), (15508, 17955)]