20308995280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1169873}}^1$

素因数の和:1169924

約数の個数: 80

約数和(自身を含む): 55704720384

約数和(自身を除く): 35395725104

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, 17360, 1169873, 2339746, 4679492, 5849365, 8189111, 9358984, 11698730, 16378222, 18717968, 23397460, 32756444, 36266063, 40945555, 46794920, 65512888, 72532126, 81891110, 93589840, 131025776, 145064252, 163782220, 181330315, 253862441, 290128504, 327564440, 362660630, 507724882, 580257008, 655128880, 725321260, 1015449764, 1269312205, 1450642520, 2030899528, 2538624410, 2901285040, 4061799056, 5077248820, 10154497640, 20308995280]

約数ペア:

[(1, 20308995280), (2, 10154497640), (4, 5077248820), (5, 4061799056), (7, 2901285040), (8, 2538624410), (10, 2030899528), (14, 1450642520), (16, 1269312205), (20, 1015449764), (28, 725321260), (31, 655128880), (35, 580257008), (40, 507724882), (56, 362660630), (62, 327564440), (70, 290128504), (80, 253862441), (112, 181330315), (124, 163782220), (140, 145064252), (155, 131025776), (217, 93589840), (248, 81891110), (280, 72532126), (310, 65512888), (434, 46794920), (496, 40945555), (560, 36266063), (620, 32756444), (868, 23397460), (1085, 18717968), (1240, 16378222), (1736, 11698730), (2170, 9358984), (2480, 8189111), (3472, 5849365), (4340, 4679492), (8680, 2339746), (17360, 1169873)]