387639160

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{99907}}^1$

素因数の和:100015

約数の個数: 32

約数和(自身を含む): 881188560

約数和(自身を除く): 493549400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 99907, 199814, 399628, 499535, 799256, 999070, 1998140, 3996280, 9690979, 19381958, 38763916, 48454895, 77527832, 96909790, 193819580, 387639160]

約数ペア:

[(1, 387639160), (2, 193819580), (4, 96909790), (5, 77527832), (8, 48454895), (10, 38763916), (20, 19381958), (40, 9690979), (97, 3996280), (194, 1998140), (388, 999070), (485, 799256), (776, 499535), (970, 399628), (1940, 199814), (3880, 99907)]