640637773990

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{443}}^1\times {\mathrm{10631}}^1$

素因数の和:11365

約数の個数: 64

約数和(自身を含む): 1180076470272

約数和(自身を除く): 539438696282

約数列:

[1, 2, 5, 10, 61, 122, 223, 305, 443, 446, 610, 886, 1115, 2215, 2230, 4430, 10631, 13603, 21262, 27023, 27206, 53155, 54046, 68015, 98789, 106310, 135115, 136030, 197578, 270230, 493945, 648491, 987890, 1296982, 2370713, 3242455, 4709533, 4741426, 6026129, 6484910, 9419066, 11853565, 12052258, 23547665, 23707130, 30130645, 47095330, 60261290, 144613493, 287281513, 289226986, 574563026, 723067465, 1050225859, 1436407565, 1446134930, 2100451718, 2872815130, 5251129295, 10502258590, 64063777399, 128127554798, 320318886995, 640637773990]

約数ペア:

[(1, 640637773990), (2, 320318886995), (5, 128127554798), (10, 64063777399), (61, 10502258590), (122, 5251129295), (223, 2872815130), (305, 2100451718), (443, 1446134930), (446, 1436407565), (610, 1050225859), (886, 723067465), (1115, 574563026), (2215, 289226986), (2230, 287281513), (4430, 144613493), (10631, 60261290), (13603, 47095330), (21262, 30130645), (27023, 23707130), (27206, 23547665), (53155, 12052258), (54046, 11853565), (68015, 9419066), (98789, 6484910), (106310, 6026129), (135115, 4741426), (136030, 4709533), (197578, 3242455), (270230, 2370713), (493945, 1296982), (648491, 987890)]