440147253

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1657}}^1$

素因数の和:1826

約数の個数: 48

約数和(自身を含む): 740927040

約数和(自身を除く): 300779787

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 139, 147, 273, 417, 637, 973, 1657, 1807, 1911, 2919, 4971, 5421, 6811, 11599, 12649, 20433, 21541, 34797, 37947, 64623, 81193, 88543, 150787, 230323, 243579, 265629, 452361, 690969, 1055509, 1612261, 2994199, 3166527, 4836783, 8982597, 11285827, 20959393, 33857481, 62878179, 146715751, 440147253]

約数ペア:

[(1, 440147253), (3, 146715751), (7, 62878179), (13, 33857481), (21, 20959393), (39, 11285827), (49, 8982597), (91, 4836783), (139, 3166527), (147, 2994199), (273, 1612261), (417, 1055509), (637, 690969), (973, 452361), (1657, 265629), (1807, 243579), (1911, 230323), (2919, 150787), (4971, 88543), (5421, 81193), (6811, 64623), (11599, 37947), (12649, 34797), (20433, 21541)]