20181972

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:496

約数の個数: 48

約数和(自身を含む): 48608000

約数和(自身を除く): 28426028

約数列:

[1, 2, 3, 4, 6, 12, 61, 79, 122, 158, 183, 237, 244, 316, 349, 366, 474, 698, 732, 948, 1047, 1396, 2094, 4188, 4819, 9638, 14457, 19276, 21289, 27571, 28914, 42578, 55142, 57828, 63867, 82713, 85156, 110284, 127734, 165426, 255468, 330852, 1681831, 3363662, 5045493, 6727324, 10090986, 20181972]

約数ペア:

[(1, 20181972), (2, 10090986), (3, 6727324), (4, 5045493), (6, 3363662), (12, 1681831), (61, 330852), (79, 255468), (122, 165426), (158, 127734), (183, 110284), (237, 85156), (244, 82713), (316, 63867), (349, 57828), (366, 55142), (474, 42578), (698, 28914), (732, 27571), (948, 21289), (1047, 19276), (1396, 14457), (2094, 9638), (4188, 4819)]