80439660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{63841}}^1$

素因数の和:63863

約数の個数: 72

約数和(自身を含む): 278861856

約数和(自身を除く): 198422196

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 63841, 127682, 191523, 255364, 319205, 383046, 446887, 574569, 638410, 766092, 893774, 957615, 1149138, 1276820, 1340661, 1787548, 1915230, 2234435, 2298276, 2681322, 2872845, 3830460, 4021983, 4468870, 5362644, 5745690, 6703305, 8043966, 8937740, 11491380, 13406610, 16087932, 20109915, 26813220, 40219830, 80439660]

約数ペア:

[(1, 80439660), (2, 40219830), (3, 26813220), (4, 20109915), (5, 16087932), (6, 13406610), (7, 11491380), (9, 8937740), (10, 8043966), (12, 6703305), (14, 5745690), (15, 5362644), (18, 4468870), (20, 4021983), (21, 3830460), (28, 2872845), (30, 2681322), (35, 2298276), (36, 2234435), (42, 1915230), (45, 1787548), (60, 1340661), (63, 1276820), (70, 1149138), (84, 957615), (90, 893774), (105, 766092), (126, 638410), (140, 574569), (180, 446887), (210, 383046), (252, 319205), (315, 255364), (420, 191523), (630, 127682), (1260, 63841)]