81915928

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 170069760

約数和(自身を除く): 88153832

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 73, 74, 136, 146, 148, 223, 292, 296, 446, 584, 629, 892, 1241, 1258, 1784, 2482, 2516, 2701, 3791, 4964, 5032, 5402, 7582, 8251, 9928, 10804, 15164, 16279, 16502, 21608, 30328, 32558, 33004, 45917, 65116, 66008, 91834, 130232, 140267, 183668, 276743, 280534, 367336, 553486, 561068, 602323, 1106972, 1122136, 1204646, 2213944, 2409292, 4818584, 10239491, 20478982, 40957964, 81915928]

約数ペア:

[(1, 81915928), (2, 40957964), (4, 20478982), (8, 10239491), (17, 4818584), (34, 2409292), (37, 2213944), (68, 1204646), (73, 1122136), (74, 1106972), (136, 602323), (146, 561068), (148, 553486), (223, 367336), (292, 280534), (296, 276743), (446, 183668), (584, 140267), (629, 130232), (892, 91834), (1241, 66008), (1258, 65116), (1784, 45917), (2482, 33004), (2516, 32558), (2701, 30328), (3791, 21608), (4964, 16502), (5032, 16279), (5402, 15164), (7582, 10804), (8251, 9928)]