20160310820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{54721}}^1$

素因数の和:54865

約数の個数: 72

約数和(自身を含む): 46265262120

約数和(自身を除く): 26104951300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 169, 218, 260, 338, 436, 545, 676, 845, 1090, 1417, 1690, 2180, 2834, 3380, 5668, 7085, 14170, 18421, 28340, 36842, 54721, 73684, 92105, 109442, 184210, 218884, 273605, 368420, 547210, 711373, 1094420, 1422746, 2845492, 3556865, 5964589, 7113730, 9247849, 11929178, 14227460, 18495698, 23858356, 29822945, 36991396, 46239245, 59645890, 77539657, 92478490, 119291780, 155079314, 184956980, 310158628, 387698285, 775396570, 1008015541, 1550793140, 2016031082, 4032062164, 5040077705, 10080155410, 20160310820]

約数ペア:

[(1, 20160310820), (2, 10080155410), (4, 5040077705), (5, 4032062164), (10, 2016031082), (13, 1550793140), (20, 1008015541), (26, 775396570), (52, 387698285), (65, 310158628), (109, 184956980), (130, 155079314), (169, 119291780), (218, 92478490), (260, 77539657), (338, 59645890), (436, 46239245), (545, 36991396), (676, 29822945), (845, 23858356), (1090, 18495698), (1417, 14227460), (1690, 11929178), (2180, 9247849), (2834, 7113730), (3380, 5964589), (5668, 3556865), (7085, 2845492), (14170, 1422746), (18421, 1094420), (28340, 711373), (36842, 547210), (54721, 368420), (73684, 273605), (92105, 218884), (109442, 184210)]