200703920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{80929}}^1$

素因数の和:80973

約数の個数: 40

約数和(自身を含む): 481695360

約数和(自身を除く): 280991440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 80929, 161858, 323716, 404645, 647432, 809290, 1294864, 1618580, 2508799, 3237160, 5017598, 6474320, 10035196, 12543995, 20070392, 25087990, 40140784, 50175980, 100351960, 200703920]

約数ペア:

[(1, 200703920), (2, 100351960), (4, 50175980), (5, 40140784), (8, 25087990), (10, 20070392), (16, 12543995), (20, 10035196), (31, 6474320), (40, 5017598), (62, 3237160), (80, 2508799), (124, 1618580), (155, 1294864), (248, 809290), (310, 647432), (496, 404645), (620, 323716), (1240, 161858), (2480, 80929)]