20124260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:225

約数の個数: 96

約数和(自身を含む): 50168160

約数和(自身を除く): 30043900

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 29, 34, 52, 58, 65, 68, 85, 116, 130, 145, 157, 170, 221, 260, 290, 314, 340, 377, 442, 493, 580, 628, 754, 785, 884, 986, 1105, 1508, 1570, 1885, 1972, 2041, 2210, 2465, 2669, 3140, 3770, 4082, 4420, 4553, 4930, 5338, 6409, 7540, 8164, 9106, 9860, 10205, 10676, 12818, 13345, 18212, 20410, 22765, 25636, 26690, 32045, 34697, 40820, 45530, 53380, 59189, 64090, 69394, 77401, 91060, 118378, 128180, 138788, 154802, 173485, 236756, 295945, 309604, 346970, 387005, 591890, 693940, 774010, 1006213, 1183780, 1548020, 2012426, 4024852, 5031065, 10062130, 20124260]

約数ペア:

[(1, 20124260), (2, 10062130), (4, 5031065), (5, 4024852), (10, 2012426), (13, 1548020), (17, 1183780), (20, 1006213), (26, 774010), (29, 693940), (34, 591890), (52, 387005), (58, 346970), (65, 309604), (68, 295945), (85, 236756), (116, 173485), (130, 154802), (145, 138788), (157, 128180), (170, 118378), (221, 91060), (260, 77401), (290, 69394), (314, 64090), (340, 59189), (377, 53380), (442, 45530), (493, 40820), (580, 34697), (628, 32045), (754, 26690), (785, 25636), (884, 22765), (986, 20410), (1105, 18212), (1508, 13345), (1570, 12818), (1885, 10676), (1972, 10205), (2041, 9860), (2210, 9106), (2465, 8164), (2669, 7540), (3140, 6409), (3770, 5338), (4082, 4930), (4420, 4553)]