19875920

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{4211}}^1$

素因数の和:4283

約数の個数: 40

約数和(自身を含む): 47005920

約数和(自身を除く): 27130000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4211, 4720, 8422, 16844, 21055, 33688, 42110, 67376, 84220, 168440, 248449, 336880, 496898, 993796, 1242245, 1987592, 2484490, 3975184, 4968980, 9937960, 19875920]

約数ペア:

[(1, 19875920), (2, 9937960), (4, 4968980), (5, 3975184), (8, 2484490), (10, 1987592), (16, 1242245), (20, 993796), (40, 496898), (59, 336880), (80, 248449), (118, 168440), (236, 84220), (295, 67376), (472, 42110), (590, 33688), (944, 21055), (1180, 16844), (2360, 8422), (4211, 4720)]