20882100160

素因数分解:

$2^6\times 5^1\times {\mathrm{3581}}^1\times {\mathrm{18223}}^1$

素因数の和:21821

約数の個数: 56

約数和(自身を含む): 49742116416

約数和(自身を除く): 28860016256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 3581, 7162, 14324, 17905, 18223, 28648, 35810, 36446, 57296, 71620, 72892, 91115, 114592, 143240, 145784, 182230, 229184, 286480, 291568, 364460, 572960, 583136, 728920, 1145920, 1166272, 1457840, 2915680, 5831360, 65256563, 130513126, 261026252, 326282815, 522052504, 652565630, 1044105008, 1305131260, 2088210016, 2610262520, 4176420032, 5220525040, 10441050080, 20882100160]

約数ペア:

[(1, 20882100160), (2, 10441050080), (4, 5220525040), (5, 4176420032), (8, 2610262520), (10, 2088210016), (16, 1305131260), (20, 1044105008), (32, 652565630), (40, 522052504), (64, 326282815), (80, 261026252), (160, 130513126), (320, 65256563), (3581, 5831360), (7162, 2915680), (14324, 1457840), (17905, 1166272), (18223, 1145920), (28648, 728920), (35810, 583136), (36446, 572960), (57296, 364460), (71620, 291568), (72892, 286480), (91115, 229184), (114592, 182230), (143240, 145784)]