31400560

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{4729}}^1$

素因数の和:4825

約数の個数: 40

約数和(自身を含む): 73901520

約数和(自身を除く): 42500960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 4729, 6640, 9458, 18916, 23645, 37832, 47290, 75664, 94580, 189160, 378320, 392507, 785014, 1570028, 1962535, 3140056, 3925070, 6280112, 7850140, 15700280, 31400560]

約数ペア:

[(1, 31400560), (2, 15700280), (4, 7850140), (5, 6280112), (8, 3925070), (10, 3140056), (16, 1962535), (20, 1570028), (40, 785014), (80, 392507), (83, 378320), (166, 189160), (332, 94580), (415, 75664), (664, 47290), (830, 37832), (1328, 23645), (1660, 18916), (3320, 9458), (4729, 6640)]