20260760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{829}}^1$

素因数の和:900

約数の個数: 64

約数和(自身を含む): 50198400

約数和(自身を除く): 29937640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 47, 52, 65, 94, 104, 130, 188, 235, 260, 376, 470, 520, 611, 829, 940, 1222, 1658, 1880, 2444, 3055, 3316, 4145, 4888, 6110, 6632, 8290, 10777, 12220, 16580, 21554, 24440, 33160, 38963, 43108, 53885, 77926, 86216, 107770, 155852, 194815, 215540, 311704, 389630, 431080, 506519, 779260, 1013038, 1558520, 2026076, 2532595, 4052152, 5065190, 10130380, 20260760]

約数ペア:

[(1, 20260760), (2, 10130380), (4, 5065190), (5, 4052152), (8, 2532595), (10, 2026076), (13, 1558520), (20, 1013038), (26, 779260), (40, 506519), (47, 431080), (52, 389630), (65, 311704), (94, 215540), (104, 194815), (130, 155852), (188, 107770), (235, 86216), (260, 77926), (376, 53885), (470, 43108), (520, 38963), (611, 33160), (829, 24440), (940, 21554), (1222, 16580), (1658, 12220), (1880, 10777), (2444, 8290), (3055, 6632), (3316, 6110), (4145, 4888)]