1899940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 4685184

約数和(自身を除く): 2785244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 331, 410, 574, 662, 820, 1148, 1324, 1435, 1655, 2317, 2870, 3310, 4634, 5740, 6620, 9268, 11585, 13571, 23170, 27142, 46340, 54284, 67855, 94997, 135710, 189994, 271420, 379988, 474985, 949970, 1899940]

約数ペア:

[(1, 1899940), (2, 949970), (4, 474985), (5, 379988), (7, 271420), (10, 189994), (14, 135710), (20, 94997), (28, 67855), (35, 54284), (41, 46340), (70, 27142), (82, 23170), (140, 13571), (164, 11585), (205, 9268), (287, 6620), (331, 5740), (410, 4634), (574, 3310), (662, 2870), (820, 2317), (1148, 1655), (1324, 1435)]