11985220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1487}}^1$

素因数の和:1540

約数の個数: 48

約数和(自身を含む): 27998208

約数和(自身を除く): 16012988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1487, 1612, 2015, 2974, 4030, 5948, 7435, 8060, 14870, 19331, 29740, 38662, 46097, 77324, 92194, 96655, 184388, 193310, 230485, 386620, 460970, 599261, 921940, 1198522, 2397044, 2996305, 5992610, 11985220]

約数ペア:

[(1, 11985220), (2, 5992610), (4, 2996305), (5, 2397044), (10, 1198522), (13, 921940), (20, 599261), (26, 460970), (31, 386620), (52, 230485), (62, 193310), (65, 184388), (124, 96655), (130, 92194), (155, 77324), (260, 46097), (310, 38662), (403, 29740), (620, 19331), (806, 14870), (1487, 8060), (1612, 7435), (2015, 5948), (2974, 4030)]