321530690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1993}}^1$

素因数の和:2103

約数の個数: 64

約数和(自身を含む): 669314016

約数和(自身を除く): 347783326

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 73, 85, 130, 146, 170, 221, 365, 442, 730, 949, 1105, 1241, 1898, 1993, 2210, 2482, 3986, 4745, 6205, 9490, 9965, 12410, 16133, 19930, 25909, 32266, 33881, 51818, 67762, 80665, 129545, 145489, 161330, 169405, 259090, 290978, 338810, 440453, 727445, 880906, 1454890, 1891357, 2202265, 2473313, 3782714, 4404530, 4946626, 9456785, 12366565, 18913570, 24733130, 32153069, 64306138, 160765345, 321530690]

約数ペア:

[(1, 321530690), (2, 160765345), (5, 64306138), (10, 32153069), (13, 24733130), (17, 18913570), (26, 12366565), (34, 9456785), (65, 4946626), (73, 4404530), (85, 3782714), (130, 2473313), (146, 2202265), (170, 1891357), (221, 1454890), (365, 880906), (442, 727445), (730, 440453), (949, 338810), (1105, 290978), (1241, 259090), (1898, 169405), (1993, 161330), (2210, 145489), (2482, 129545), (3986, 80665), (4745, 67762), (6205, 51818), (9490, 33881), (9965, 32266), (12410, 25909), (16133, 19930)]