245432890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{12979}}^1$

素因数の和:13078

約数の個数: 32

約数和(自身を含む): 463541760

約数和(自身を除く): 218108870

約数列:

[1, 2, 5, 10, 31, 61, 62, 122, 155, 305, 310, 610, 1891, 3782, 9455, 12979, 18910, 25958, 64895, 129790, 402349, 791719, 804698, 1583438, 2011745, 3958595, 4023490, 7917190, 24543289, 49086578, 122716445, 245432890]

約数ペア:

[(1, 245432890), (2, 122716445), (5, 49086578), (10, 24543289), (31, 7917190), (61, 4023490), (62, 3958595), (122, 2011745), (155, 1583438), (305, 804698), (310, 791719), (610, 402349), (1891, 129790), (3782, 64895), (9455, 25958), (12979, 18910)]