21568360070

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1\times {\mathrm{1289}}^1$

素因数の和:1721

約数の個数: 64

約数和(自身を含む): 40053942720

約数和(自身を除く): 18485582650

約数列:

[1, 2, 5, 10, 53, 106, 131, 241, 262, 265, 482, 530, 655, 1205, 1289, 1310, 2410, 2578, 6445, 6943, 12773, 12890, 13886, 25546, 31571, 34715, 63142, 63865, 68317, 69430, 127730, 136634, 157855, 168859, 310649, 315710, 337718, 341585, 621298, 683170, 844295, 1553245, 1673263, 1688590, 3106490, 3346526, 8366315, 8949527, 16464397, 16732630, 17899054, 32928794, 40695019, 44747635, 81390038, 82321985, 89495270, 164643970, 203475095, 406950190, 2156836007, 4313672014, 10784180035, 21568360070]

約数ペア:

[(1, 21568360070), (2, 10784180035), (5, 4313672014), (10, 2156836007), (53, 406950190), (106, 203475095), (131, 164643970), (241, 89495270), (262, 82321985), (265, 81390038), (482, 44747635), (530, 40695019), (655, 32928794), (1205, 17899054), (1289, 16732630), (1310, 16464397), (2410, 8949527), (2578, 8366315), (6445, 3346526), (6943, 3106490), (12773, 1688590), (12890, 1673263), (13886, 1553245), (25546, 844295), (31571, 683170), (34715, 621298), (63142, 341585), (63865, 337718), (68317, 315710), (69430, 310649), (127730, 168859), (136634, 157855)]