240835280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{13873}}^1$

素因数の和:13924

約数の個数: 80

約数和(自身を含む): 660624384

約数和(自身を除く): 419789104

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 13873, 17360, 27746, 55492, 69365, 97111, 110984, 138730, 194222, 221968, 277460, 388444, 430063, 485555, 554920, 776888, 860126, 971110, 1109840, 1553776, 1720252, 1942220, 2150315, 3010441, 3440504, 3884440, 4300630, 6020882, 6881008, 7768880, 8601260, 12041764, 15052205, 17202520, 24083528, 30104410, 34405040, 48167056, 60208820, 120417640, 240835280]

約数ペア:

[(1, 240835280), (2, 120417640), (4, 60208820), (5, 48167056), (7, 34405040), (8, 30104410), (10, 24083528), (14, 17202520), (16, 15052205), (20, 12041764), (28, 8601260), (31, 7768880), (35, 6881008), (40, 6020882), (56, 4300630), (62, 3884440), (70, 3440504), (80, 3010441), (112, 2150315), (124, 1942220), (140, 1720252), (155, 1553776), (217, 1109840), (248, 971110), (280, 860126), (310, 776888), (434, 554920), (496, 485555), (560, 430063), (620, 388444), (868, 277460), (1085, 221968), (1240, 194222), (1736, 138730), (2170, 110984), (2480, 97111), (3472, 69365), (4340, 55492), (8680, 27746), (13873, 17360)]