12972880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5231}}^1$

素因数の和:5275

約数の個数: 40

約数和(自身を含む): 31140864

約数和(自身を除く): 18167984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 5231, 10462, 20924, 26155, 41848, 52310, 83696, 104620, 162161, 209240, 324322, 418480, 648644, 810805, 1297288, 1621610, 2594576, 3243220, 6486440, 12972880]

約数ペア:

[(1, 12972880), (2, 6486440), (4, 3243220), (5, 2594576), (8, 1621610), (10, 1297288), (16, 810805), (20, 648644), (31, 418480), (40, 324322), (62, 209240), (80, 162161), (124, 104620), (155, 83696), (248, 52310), (310, 41848), (496, 26155), (620, 20924), (1240, 10462), (2480, 5231)]