2004039640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1616161}}^1$

素因数の和:1616203

約数の個数: 32

約数和(自身を含む): 4654546560

約数和(自身を除く): 2650506920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1616161, 3232322, 6464644, 8080805, 12929288, 16161610, 32323220, 50100991, 64646440, 100201982, 200403964, 250504955, 400807928, 501009910, 1002019820, 2004039640]

約数ペア:

[(1, 2004039640), (2, 1002019820), (4, 501009910), (5, 400807928), (8, 250504955), (10, 200403964), (20, 100201982), (31, 64646440), (40, 50100991), (62, 32323220), (124, 16161610), (155, 12929288), (248, 8080805), (310, 6464644), (620, 3232322), (1240, 1616161)]