20550270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:154

約数の個数: 128

約数和(自身を含む): 58060800

約数和(自身を除く): 37510530

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 29, 30, 39, 46, 58, 65, 69, 78, 79, 87, 115, 130, 138, 145, 158, 174, 195, 230, 237, 290, 299, 345, 377, 390, 395, 435, 474, 598, 667, 690, 754, 790, 870, 897, 1027, 1131, 1185, 1334, 1495, 1794, 1817, 1885, 2001, 2054, 2262, 2291, 2370, 2990, 3081, 3335, 3634, 3770, 4002, 4485, 4582, 5135, 5451, 5655, 6162, 6670, 6873, 8671, 8970, 9085, 10005, 10270, 10902, 11310, 11455, 13746, 15405, 17342, 18170, 20010, 22910, 23621, 26013, 27255, 29783, 30810, 34365, 43355, 47242, 52026, 52693, 54510, 59566, 68730, 70863, 86710, 89349, 105386, 118105, 130065, 141726, 148915, 158079, 178698, 236210, 260130, 263465, 297830, 316158, 354315, 446745, 526930, 685009, 708630, 790395, 893490, 1370018, 1580790, 2055027, 3425045, 4110054, 6850090, 10275135, 20550270]

約数ペア:

[(1, 20550270), (2, 10275135), (3, 6850090), (5, 4110054), (6, 3425045), (10, 2055027), (13, 1580790), (15, 1370018), (23, 893490), (26, 790395), (29, 708630), (30, 685009), (39, 526930), (46, 446745), (58, 354315), (65, 316158), (69, 297830), (78, 263465), (79, 260130), (87, 236210), (115, 178698), (130, 158079), (138, 148915), (145, 141726), (158, 130065), (174, 118105), (195, 105386), (230, 89349), (237, 86710), (290, 70863), (299, 68730), (345, 59566), (377, 54510), (390, 52693), (395, 52026), (435, 47242), (474, 43355), (598, 34365), (667, 30810), (690, 29783), (754, 27255), (790, 26013), (870, 23621), (897, 22910), (1027, 20010), (1131, 18170), (1185, 17342), (1334, 15405), (1495, 13746), (1794, 11455), (1817, 11310), (1885, 10902), (2001, 10270), (2054, 10005), (2262, 9085), (2291, 8970), (2370, 8671), (2990, 6873), (3081, 6670), (3335, 6162), (3634, 5655), (3770, 5451), (4002, 5135), (4485, 4582)]