20180391088

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{166417}}^1$

素因数の和:166502

約数の個数: 80

約数和(自身を含む): 46802066976

約数和(自身を除く): 26621675888

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 53, 88, 104, 106, 143, 176, 208, 212, 286, 424, 572, 583, 689, 848, 1144, 1166, 1378, 2288, 2332, 2756, 4664, 5512, 7579, 9328, 11024, 15158, 30316, 60632, 121264, 166417, 332834, 665668, 1331336, 1830587, 2163421, 2662672, 3661174, 4326842, 7322348, 8653684, 8820101, 14644696, 17307368, 17640202, 23797631, 29289392, 34614736, 35280404, 47595262, 70560808, 95190524, 97021111, 114661313, 141121616, 190381048, 194042222, 229322626, 380762096, 388084444, 458645252, 776168888, 917290504, 1261274443, 1552337776, 1834581008, 2522548886, 5045097772, 10090195544, 20180391088]

約数ペア:

[(1, 20180391088), (2, 10090195544), (4, 5045097772), (8, 2522548886), (11, 1834581008), (13, 1552337776), (16, 1261274443), (22, 917290504), (26, 776168888), (44, 458645252), (52, 388084444), (53, 380762096), (88, 229322626), (104, 194042222), (106, 190381048), (143, 141121616), (176, 114661313), (208, 97021111), (212, 95190524), (286, 70560808), (424, 47595262), (572, 35280404), (583, 34614736), (689, 29289392), (848, 23797631), (1144, 17640202), (1166, 17307368), (1378, 14644696), (2288, 8820101), (2332, 8653684), (2756, 7322348), (4664, 4326842), (5512, 3661174), (7579, 2662672), (9328, 2163421), (11024, 1830587), (15158, 1331336), (30316, 665668), (60632, 332834), (121264, 166417)]