19135880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 46189440

約数和(自身を除く): 27053560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 107, 136, 170, 214, 263, 340, 428, 526, 535, 680, 856, 1052, 1070, 1315, 1819, 2104, 2140, 2630, 3638, 4280, 4471, 5260, 7276, 8942, 9095, 10520, 14552, 17884, 18190, 22355, 28141, 35768, 36380, 44710, 56282, 72760, 89420, 112564, 140705, 178840, 225128, 281410, 478397, 562820, 956794, 1125640, 1913588, 2391985, 3827176, 4783970, 9567940, 19135880]

約数ペア:

[(1, 19135880), (2, 9567940), (4, 4783970), (5, 3827176), (8, 2391985), (10, 1913588), (17, 1125640), (20, 956794), (34, 562820), (40, 478397), (68, 281410), (85, 225128), (107, 178840), (136, 140705), (170, 112564), (214, 89420), (263, 72760), (340, 56282), (428, 44710), (526, 36380), (535, 35768), (680, 28141), (856, 22355), (1052, 18190), (1070, 17884), (1315, 14552), (1819, 10520), (2104, 9095), (2140, 8942), (2630, 7276), (3638, 5260), (4280, 4471)]