40138945

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{761}}^1$

素因数の和:921

約数の個数: 32

約数和(自身を含む): 60569856

約数和(自身を除く): 20430911

約数列:

[1, 5, 7, 11, 35, 55, 77, 137, 385, 685, 761, 959, 1507, 3805, 4795, 5327, 7535, 8371, 10549, 26635, 41855, 52745, 58597, 104257, 292985, 521285, 729799, 1146827, 3648995, 5734135, 8027789, 40138945]

約数ペア:

[(1, 40138945), (5, 8027789), (7, 5734135), (11, 3648995), (35, 1146827), (55, 729799), (77, 521285), (137, 292985), (385, 104257), (685, 58597), (761, 52745), (959, 41855), (1507, 26635), (3805, 10549), (4795, 8371), (5327, 7535)]