212323725

素因数分解:

$3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{13291}}^1$

素因数の和:13378

約数の個数: 36

約数和(自身を含む): 385680672

約数和(自身を除く): 173356947

約数列:

[1, 3, 5, 9, 15, 25, 45, 71, 75, 213, 225, 355, 639, 1065, 1775, 3195, 5325, 13291, 15975, 39873, 66455, 119619, 199365, 332275, 598095, 943661, 996825, 2830983, 2990475, 4718305, 8492949, 14154915, 23591525, 42464745, 70774575, 212323725]

約数ペア:

[(1, 212323725), (3, 70774575), (5, 42464745), (9, 23591525), (15, 14154915), (25, 8492949), (45, 4718305), (71, 2990475), (75, 2830983), (213, 996825), (225, 943661), (355, 598095), (639, 332275), (1065, 199365), (1775, 119619), (3195, 66455), (5325, 39873), (13291, 15975)]