82721915

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 116709120

約数和(自身を除く): 33987205

約数列:

[1, 5, 17, 19, 23, 85, 95, 115, 131, 289, 323, 391, 437, 655, 1445, 1615, 1955, 2185, 2227, 2489, 3013, 5491, 6647, 7429, 11135, 12445, 15065, 27455, 33235, 37145, 37859, 42313, 51221, 57247, 126293, 189295, 211565, 256105, 286235, 631465, 719321, 870757, 973199, 3596605, 4353785, 4865995, 16544383, 82721915]

約数ペア:

[(1, 82721915), (5, 16544383), (17, 4865995), (19, 4353785), (23, 3596605), (85, 973199), (95, 870757), (115, 719321), (131, 631465), (289, 286235), (323, 256105), (391, 211565), (437, 189295), (655, 126293), (1445, 57247), (1615, 51221), (1955, 42313), (2185, 37859), (2227, 37145), (2489, 33235), (3013, 27455), (5491, 15065), (6647, 12445), (7429, 11135)]