20682870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{293}}^1$

素因数の和:497

約数の個数: 64

約数和(自身を含む): 53936064

約数和(自身を除く): 33253194

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 181, 195, 293, 362, 390, 543, 586, 879, 905, 1086, 1465, 1758, 1810, 2353, 2715, 2930, 3809, 4395, 4706, 5430, 7059, 7618, 8790, 11427, 11765, 14118, 19045, 22854, 23530, 35295, 38090, 53033, 57135, 70590, 106066, 114270, 159099, 265165, 318198, 530330, 689429, 795495, 1378858, 1590990, 2068287, 3447145, 4136574, 6894290, 10341435, 20682870]

約数ペア:

[(1, 20682870), (2, 10341435), (3, 6894290), (5, 4136574), (6, 3447145), (10, 2068287), (13, 1590990), (15, 1378858), (26, 795495), (30, 689429), (39, 530330), (65, 318198), (78, 265165), (130, 159099), (181, 114270), (195, 106066), (293, 70590), (362, 57135), (390, 53033), (543, 38090), (586, 35295), (879, 23530), (905, 22854), (1086, 19045), (1465, 14118), (1758, 11765), (1810, 11427), (2353, 8790), (2715, 7618), (2930, 7059), (3809, 5430), (4395, 4706)]