206550620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1\times {\mathrm{761}}^1$

素因数の和:1142

約数の個数: 48

約数和(自身を含む): 446263776

約数和(自身を除く): 239713156

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 331, 410, 662, 761, 820, 1324, 1522, 1655, 3044, 3310, 3805, 6620, 7610, 13571, 15220, 27142, 31201, 54284, 62402, 67855, 124804, 135710, 156005, 251891, 271420, 312010, 503782, 624020, 1007564, 1259455, 2518910, 5037820, 10327531, 20655062, 41310124, 51637655, 103275310, 206550620]

約数ペア:

[(1, 206550620), (2, 103275310), (4, 51637655), (5, 41310124), (10, 20655062), (20, 10327531), (41, 5037820), (82, 2518910), (164, 1259455), (205, 1007564), (331, 624020), (410, 503782), (662, 312010), (761, 271420), (820, 251891), (1324, 156005), (1522, 135710), (1655, 124804), (3044, 67855), (3310, 62402), (3805, 54284), (6620, 31201), (7610, 27142), (13571, 15220)]