127631960

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{102929}}^1$

素因数の和:102971

約数の個数: 32

約数和(自身を含む): 296438400

約数和(自身を除く): 168806440

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 102929, 205858, 411716, 514645, 823432, 1029290, 2058580, 3190799, 4117160, 6381598, 12763196, 15953995, 25526392, 31907990, 63815980, 127631960]

約数ペア:

[(1, 127631960), (2, 63815980), (4, 31907990), (5, 25526392), (8, 15953995), (10, 12763196), (20, 6381598), (31, 4117160), (40, 3190799), (62, 2058580), (124, 1029290), (155, 823432), (248, 514645), (310, 411716), (620, 205858), (1240, 102929)]