978013790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{2371}}^1$

素因数の和:2577

約数の個数: 64

約数和(自身を含む): 2008419840

約数和(自身を除く): 1030406050

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 167, 190, 247, 334, 494, 835, 1235, 1670, 2171, 2371, 2470, 3173, 4342, 4742, 6346, 10855, 11855, 15865, 21710, 23710, 30823, 31730, 41249, 45049, 61646, 82498, 90098, 154115, 206245, 225245, 308230, 395957, 412490, 450490, 585637, 791914, 1171274, 1979785, 2928185, 3959570, 5147441, 5856370, 7523183, 10294882, 15046366, 25737205, 37615915, 51474410, 75231830, 97801379, 195602758, 489006895, 978013790]

約数ペア:

[(1, 978013790), (2, 489006895), (5, 195602758), (10, 97801379), (13, 75231830), (19, 51474410), (26, 37615915), (38, 25737205), (65, 15046366), (95, 10294882), (130, 7523183), (167, 5856370), (190, 5147441), (247, 3959570), (334, 2928185), (494, 1979785), (835, 1171274), (1235, 791914), (1670, 585637), (2171, 450490), (2371, 412490), (2470, 395957), (3173, 308230), (4342, 225245), (4742, 206245), (6346, 154115), (10855, 90098), (11855, 82498), (15865, 61646), (21710, 45049), (23710, 41249), (30823, 31730)]