278865018

素因数分解:

$2^1\times 3^4\times {\mathrm{23}}^1\times {\mathrm{74843}}^1$

素因数の和:74880

約数の個数: 40

約数和(自身を含む): 652040928

約数和(自身を除く): 373175910

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 81, 138, 162, 207, 414, 621, 1242, 1863, 3726, 74843, 149686, 224529, 449058, 673587, 1347174, 1721389, 2020761, 3442778, 4041522, 5164167, 6062283, 10328334, 12124566, 15492501, 30985002, 46477503, 92955006, 139432509, 278865018]

約数ペア:

[(1, 278865018), (2, 139432509), (3, 92955006), (6, 46477503), (9, 30985002), (18, 15492501), (23, 12124566), (27, 10328334), (46, 6062283), (54, 5164167), (69, 4041522), (81, 3442778), (138, 2020761), (162, 1721389), (207, 1347174), (414, 673587), (621, 449058), (1242, 224529), (1863, 149686), (3726, 74843)]