290086840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{233941}}^1$

素因数の和:233983

約数の個数: 32

約数和(自身を含む): 673752960

約数和(自身を除く): 383666120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 233941, 467882, 935764, 1169705, 1871528, 2339410, 4678820, 7252171, 9357640, 14504342, 29008684, 36260855, 58017368, 72521710, 145043420, 290086840]

約数ペア:

[(1, 290086840), (2, 145043420), (4, 72521710), (5, 58017368), (8, 36260855), (10, 29008684), (20, 14504342), (31, 9357640), (40, 7252171), (62, 4678820), (124, 2339410), (155, 1871528), (248, 1169705), (310, 935764), (620, 467882), (1240, 233941)]