312128540

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1\times {\mathrm{641}}^1$

素因数の和:998

約数の個数: 48

約数和(自身を含む): 665902944

約数和(自身を除く): 353774404

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 251, 388, 485, 502, 641, 970, 1004, 1255, 1282, 1940, 2510, 2564, 3205, 5020, 6410, 12820, 24347, 48694, 62177, 97388, 121735, 124354, 160891, 243470, 248708, 310885, 321782, 486940, 621770, 643564, 804455, 1243540, 1608910, 3217820, 15606427, 31212854, 62425708, 78032135, 156064270, 312128540]

約数ペア:

[(1, 312128540), (2, 156064270), (4, 78032135), (5, 62425708), (10, 31212854), (20, 15606427), (97, 3217820), (194, 1608910), (251, 1243540), (388, 804455), (485, 643564), (502, 621770), (641, 486940), (970, 321782), (1004, 310885), (1255, 248708), (1282, 243470), (1940, 160891), (2510, 124354), (2564, 121735), (3205, 97388), (5020, 62177), (6410, 48694), (12820, 24347)]