12931508740

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{997}}^1\times {\mathrm{6421}}^1$

素因数の和:7528

約数の個数: 48

約数和(自身を含む): 27456824304

約数和(自身を除く): 14525315564

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 997, 1010, 1994, 2020, 3988, 4985, 6421, 9970, 12842, 19940, 25684, 32105, 64210, 100697, 128420, 201394, 402788, 503485, 648521, 1006970, 1297042, 2013940, 2594084, 3242605, 6401737, 6485210, 12803474, 12970420, 25606948, 32008685, 64017370, 128034740, 646575437, 1293150874, 2586301748, 3232877185, 6465754370, 12931508740]

約数ペア:

[(1, 12931508740), (2, 6465754370), (4, 3232877185), (5, 2586301748), (10, 1293150874), (20, 646575437), (101, 128034740), (202, 64017370), (404, 32008685), (505, 25606948), (997, 12970420), (1010, 12803474), (1994, 6485210), (2020, 6401737), (3988, 3242605), (4985, 2594084), (6421, 2013940), (9970, 1297042), (12842, 1006970), (19940, 648521), (25684, 503485), (32105, 402788), (64210, 201394), (100697, 128420)]