21167763640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{91099}}^1$

素因数の和:91304

約数の個数: 64

約数和(自身を含む): 49226796000

約数和(自身を除く): 28059032360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 157, 185, 296, 314, 370, 628, 740, 785, 1256, 1480, 1570, 3140, 5809, 6280, 11618, 23236, 29045, 46472, 58090, 91099, 116180, 182198, 232360, 364396, 455495, 728792, 910990, 1821980, 3370663, 3643960, 6741326, 13482652, 14302543, 16853315, 26965304, 28605086, 33706630, 57210172, 67413260, 71512715, 114420344, 134826520, 143025430, 286050860, 529194091, 572101720, 1058388182, 2116776364, 2645970455, 4233552728, 5291940910, 10583881820, 21167763640]

約数ペア:

[(1, 21167763640), (2, 10583881820), (4, 5291940910), (5, 4233552728), (8, 2645970455), (10, 2116776364), (20, 1058388182), (37, 572101720), (40, 529194091), (74, 286050860), (148, 143025430), (157, 134826520), (185, 114420344), (296, 71512715), (314, 67413260), (370, 57210172), (628, 33706630), (740, 28605086), (785, 26965304), (1256, 16853315), (1480, 14302543), (1570, 13482652), (3140, 6741326), (5809, 3643960), (6280, 3370663), (11618, 1821980), (23236, 910990), (29045, 728792), (46472, 455495), (58090, 364396), (91099, 232360), (116180, 182198)]