788408420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{8681}}^1$

素因数の和:8948

約数の個数: 48

約数和(自身を含む): 1750291200

約数和(自身を除く): 961882780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 239, 380, 478, 956, 1195, 2390, 4541, 4780, 8681, 9082, 17362, 18164, 22705, 34724, 43405, 45410, 86810, 90820, 164939, 173620, 329878, 659756, 824695, 1649390, 2074759, 3298780, 4149518, 8299036, 10373795, 20747590, 39420421, 41495180, 78840842, 157681684, 197102105, 394204210, 788408420]

約数ペア:

[(1, 788408420), (2, 394204210), (4, 197102105), (5, 157681684), (10, 78840842), (19, 41495180), (20, 39420421), (38, 20747590), (76, 10373795), (95, 8299036), (190, 4149518), (239, 3298780), (380, 2074759), (478, 1649390), (956, 824695), (1195, 659756), (2390, 329878), (4541, 173620), (4780, 164939), (8681, 90820), (9082, 86810), (17362, 45410), (18164, 43405), (22705, 34724)]