420482080

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{154589}}^1$

素因数の和:154621

約数の個数: 48

約数和(自身を含む): 1051830360

約数和(自身を除く): 631348280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 154589, 309178, 618356, 772945, 1236712, 1545890, 2473424, 2628013, 3091780, 4946848, 5256026, 6183560, 10512052, 12367120, 13140065, 21024104, 24734240, 26280130, 42048208, 52560260, 84096416, 105120520, 210241040, 420482080]

約数ペア:

[(1, 420482080), (2, 210241040), (4, 105120520), (5, 84096416), (8, 52560260), (10, 42048208), (16, 26280130), (17, 24734240), (20, 21024104), (32, 13140065), (34, 12367120), (40, 10512052), (68, 6183560), (80, 5256026), (85, 4946848), (136, 3091780), (160, 2628013), (170, 2473424), (272, 1545890), (340, 1236712), (544, 772945), (680, 618356), (1360, 309178), (2720, 154589)]