20066860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1721}}^1$

素因数の和:1794

約数の個数: 48

約数和(自身を含む): 46865952

約数和(自身を除く): 26799092

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 53, 55, 106, 110, 212, 220, 265, 530, 583, 1060, 1166, 1721, 2332, 2915, 3442, 5830, 6884, 8605, 11660, 17210, 18931, 34420, 37862, 75724, 91213, 94655, 182426, 189310, 364852, 378620, 456065, 912130, 1003343, 1824260, 2006686, 4013372, 5016715, 10033430, 20066860]

約数ペア:

[(1, 20066860), (2, 10033430), (4, 5016715), (5, 4013372), (10, 2006686), (11, 1824260), (20, 1003343), (22, 912130), (44, 456065), (53, 378620), (55, 364852), (106, 189310), (110, 182426), (212, 94655), (220, 91213), (265, 75724), (530, 37862), (583, 34420), (1060, 18931), (1166, 17210), (1721, 11660), (2332, 8605), (2915, 6884), (3442, 5830)]