64568720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1$

素因数の和:468

約数の個数: 80

約数和(自身を含む): 160422768

約数和(自身を除く): 95854048

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 197, 241, 272, 340, 394, 482, 680, 788, 964, 985, 1205, 1360, 1576, 1928, 1970, 2410, 3152, 3349, 3856, 3940, 4097, 4820, 6698, 7880, 8194, 9640, 13396, 15760, 16388, 16745, 19280, 20485, 26792, 32776, 33490, 40970, 47477, 53584, 65552, 66980, 81940, 94954, 133960, 163880, 189908, 237385, 267920, 327760, 379816, 474770, 759632, 807109, 949540, 1614218, 1899080, 3228436, 3798160, 4035545, 6456872, 8071090, 12913744, 16142180, 32284360, 64568720]

約数ペア:

[(1, 64568720), (2, 32284360), (4, 16142180), (5, 12913744), (8, 8071090), (10, 6456872), (16, 4035545), (17, 3798160), (20, 3228436), (34, 1899080), (40, 1614218), (68, 949540), (80, 807109), (85, 759632), (136, 474770), (170, 379816), (197, 327760), (241, 267920), (272, 237385), (340, 189908), (394, 163880), (482, 133960), (680, 94954), (788, 81940), (964, 66980), (985, 65552), (1205, 53584), (1360, 47477), (1576, 40970), (1928, 33490), (1970, 32776), (2410, 26792), (3152, 20485), (3349, 19280), (3856, 16745), (3940, 16388), (4097, 15760), (4820, 13396), (6698, 9640), (7880, 8194)]