28195440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1291}}^1$

素因数の和:1327

約数の個数: 160

約数和(自身を含む): 107659776

約数和(自身を除く): 79464336

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 48, 52, 56, 60, 65, 70, 78, 80, 84, 91, 104, 105, 112, 120, 130, 140, 156, 168, 182, 195, 208, 210, 240, 260, 273, 280, 312, 336, 364, 390, 420, 455, 520, 546, 560, 624, 728, 780, 840, 910, 1040, 1092, 1291, 1365, 1456, 1560, 1680, 1820, 2184, 2582, 2730, 3120, 3640, 3873, 4368, 5164, 5460, 6455, 7280, 7746, 9037, 10328, 10920, 12910, 15492, 16783, 18074, 19365, 20656, 21840, 25820, 27111, 30984, 33566, 36148, 38730, 45185, 50349, 51640, 54222, 61968, 67132, 72296, 77460, 83915, 90370, 100698, 103280, 108444, 117481, 134264, 135555, 144592, 154920, 167830, 180740, 201396, 216888, 234962, 251745, 268528, 271110, 309840, 335660, 352443, 361480, 402792, 433776, 469924, 503490, 542220, 587405, 671320, 704886, 722960, 805584, 939848, 1006980, 1084440, 1174810, 1342640, 1409772, 1762215, 1879696, 2013960, 2168880, 2349620, 2819544, 3524430, 4027920, 4699240, 5639088, 7048860, 9398480, 14097720, 28195440]

約数ペア:

[(1, 28195440), (2, 14097720), (3, 9398480), (4, 7048860), (5, 5639088), (6, 4699240), (7, 4027920), (8, 3524430), (10, 2819544), (12, 2349620), (13, 2168880), (14, 2013960), (15, 1879696), (16, 1762215), (20, 1409772), (21, 1342640), (24, 1174810), (26, 1084440), (28, 1006980), (30, 939848), (35, 805584), (39, 722960), (40, 704886), (42, 671320), (48, 587405), (52, 542220), (56, 503490), (60, 469924), (65, 433776), (70, 402792), (78, 361480), (80, 352443), (84, 335660), (91, 309840), (104, 271110), (105, 268528), (112, 251745), (120, 234962), (130, 216888), (140, 201396), (156, 180740), (168, 167830), (182, 154920), (195, 144592), (208, 135555), (210, 134264), (240, 117481), (260, 108444), (273, 103280), (280, 100698), (312, 90370), (336, 83915), (364, 77460), (390, 72296), (420, 67132), (455, 61968), (520, 54222), (546, 51640), (560, 50349), (624, 45185), (728, 38730), (780, 36148), (840, 33566), (910, 30984), (1040, 27111), (1092, 25820), (1291, 21840), (1365, 20656), (1456, 19365), (1560, 18074), (1680, 16783), (1820, 15492), (2184, 12910), (2582, 10920), (2730, 10328), (3120, 9037), (3640, 7746), (3873, 7280), (4368, 6455), (5164, 5460)]