187551220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1\times {\mathrm{691}}^1$

素因数の和:1072

約数の個数: 48

約数和(自身を含む): 405268416

約数和(自身を除く): 217717196

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 331, 410, 662, 691, 820, 1324, 1382, 1655, 2764, 3310, 3455, 6620, 6910, 13571, 13820, 27142, 28331, 54284, 56662, 67855, 113324, 135710, 141655, 228721, 271420, 283310, 457442, 566620, 914884, 1143605, 2287210, 4574420, 9377561, 18755122, 37510244, 46887805, 93775610, 187551220]

約数ペア:

[(1, 187551220), (2, 93775610), (4, 46887805), (5, 37510244), (10, 18755122), (20, 9377561), (41, 4574420), (82, 2287210), (164, 1143605), (205, 914884), (331, 566620), (410, 457442), (662, 283310), (691, 271420), (820, 228721), (1324, 141655), (1382, 135710), (1655, 113324), (2764, 67855), (3310, 56662), (3455, 54284), (6620, 28331), (6910, 27142), (13571, 13820)]