20125160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{863}}^1$

素因数の和:938

約数の個数: 64

約数和(自身を含む): 50388480

約数和(自身を除く): 30263320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 53, 55, 88, 106, 110, 212, 220, 265, 424, 440, 530, 583, 863, 1060, 1166, 1726, 2120, 2332, 2915, 3452, 4315, 4664, 5830, 6904, 8630, 9493, 11660, 17260, 18986, 23320, 34520, 37972, 45739, 47465, 75944, 91478, 94930, 182956, 189860, 228695, 365912, 379720, 457390, 503129, 914780, 1006258, 1829560, 2012516, 2515645, 4025032, 5031290, 10062580, 20125160]

約数ペア:

[(1, 20125160), (2, 10062580), (4, 5031290), (5, 4025032), (8, 2515645), (10, 2012516), (11, 1829560), (20, 1006258), (22, 914780), (40, 503129), (44, 457390), (53, 379720), (55, 365912), (88, 228695), (106, 189860), (110, 182956), (212, 94930), (220, 91478), (265, 75944), (424, 47465), (440, 45739), (530, 37972), (583, 34520), (863, 23320), (1060, 18986), (1166, 17260), (1726, 11660), (2120, 9493), (2332, 8630), (2915, 6904), (3452, 5830), (4315, 4664)]