320442040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{258421}}^1$

素因数の和:258463

約数の個数: 32

約数和(自身を含む): 744255360

約数和(自身を除く): 423813320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 258421, 516842, 1033684, 1292105, 2067368, 2584210, 5168420, 8011051, 10336840, 16022102, 32044204, 40055255, 64088408, 80110510, 160221020, 320442040]

約数ペア:

[(1, 320442040), (2, 160221020), (4, 80110510), (5, 64088408), (8, 40055255), (10, 32044204), (20, 16022102), (31, 10336840), (40, 8011051), (62, 5168420), (124, 2584210), (155, 2067368), (248, 1292105), (310, 1033684), (620, 516842), (1240, 258421)]