216703640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{174761}}^1$

素因数の和:174803

約数の個数: 32

約数和(自身を含む): 503314560

約数和(自身を除く): 286610920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 174761, 349522, 699044, 873805, 1398088, 1747610, 3495220, 5417591, 6990440, 10835182, 21670364, 27087955, 43340728, 54175910, 108351820, 216703640]

約数ペア:

[(1, 216703640), (2, 108351820), (4, 54175910), (5, 43340728), (8, 27087955), (10, 21670364), (20, 10835182), (31, 6990440), (40, 5417591), (62, 3495220), (124, 1747610), (155, 1398088), (248, 873805), (310, 699044), (620, 349522), (1240, 174761)]