1279842440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1032131}}^1$

素因数の和:1032173

約数の個数: 32

約数和(自身を含む): 2972540160

約数和(自身を除く): 1692697720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1032131, 2064262, 4128524, 5160655, 8257048, 10321310, 20642620, 31996061, 41285240, 63992122, 127984244, 159980305, 255968488, 319960610, 639921220, 1279842440]

約数ペア:

[(1, 1279842440), (2, 639921220), (4, 319960610), (5, 255968488), (8, 159980305), (10, 127984244), (20, 63992122), (31, 41285240), (40, 31996061), (62, 20642620), (124, 10321310), (155, 8257048), (248, 5160655), (310, 4128524), (620, 2064262), (1240, 1032131)]