28040580

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{911}}^1$

素因数の和:951

約数の個数: 120

約数和(自身を含む): 92695680

約数和(自身を除く): 64655100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 684, 810, 855, 911, 1026, 1140, 1539, 1620, 1710, 1822, 2052, 2565, 2733, 3078, 3420, 3644, 4555, 5130, 5466, 6156, 7695, 8199, 9110, 10260, 10932, 13665, 15390, 16398, 17309, 18220, 24597, 27330, 30780, 32796, 34618, 40995, 49194, 51927, 54660, 69236, 73791, 81990, 86545, 98388, 103854, 122985, 147582, 155781, 163980, 173090, 207708, 245970, 259635, 295164, 311562, 346180, 368955, 467343, 491940, 519270, 623124, 737910, 778905, 934686, 1038540, 1402029, 1475820, 1557810, 1869372, 2336715, 2804058, 3115620, 4673430, 5608116, 7010145, 9346860, 14020290, 28040580]

約数ペア:

[(1, 28040580), (2, 14020290), (3, 9346860), (4, 7010145), (5, 5608116), (6, 4673430), (9, 3115620), (10, 2804058), (12, 2336715), (15, 1869372), (18, 1557810), (19, 1475820), (20, 1402029), (27, 1038540), (30, 934686), (36, 778905), (38, 737910), (45, 623124), (54, 519270), (57, 491940), (60, 467343), (76, 368955), (81, 346180), (90, 311562), (95, 295164), (108, 259635), (114, 245970), (135, 207708), (162, 173090), (171, 163980), (180, 155781), (190, 147582), (228, 122985), (270, 103854), (285, 98388), (324, 86545), (342, 81990), (380, 73791), (405, 69236), (513, 54660), (540, 51927), (570, 49194), (684, 40995), (810, 34618), (855, 32796), (911, 30780), (1026, 27330), (1140, 24597), (1539, 18220), (1620, 17309), (1710, 16398), (1822, 15390), (2052, 13665), (2565, 10932), (2733, 10260), (3078, 9110), (3420, 8199), (3644, 7695), (4555, 6156), (5130, 5466)]