257216880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{3491}}^1$

素因数の和:3814

約数の個数: 80

約数和(自身を含む): 800198784

約数和(自身を除く): 542981904

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 307, 614, 921, 1228, 1535, 1842, 2456, 3070, 3491, 3684, 4605, 4912, 6140, 6982, 7368, 9210, 10473, 12280, 13964, 14736, 17455, 18420, 20946, 24560, 27928, 34910, 36840, 41892, 52365, 55856, 69820, 73680, 83784, 104730, 139640, 167568, 209460, 279280, 418920, 837840, 1071737, 2143474, 3215211, 4286948, 5358685, 6430422, 8573896, 10717370, 12860844, 16076055, 17147792, 21434740, 25721688, 32152110, 42869480, 51443376, 64304220, 85738960, 128608440, 257216880]

約数ペア:

[(1, 257216880), (2, 128608440), (3, 85738960), (4, 64304220), (5, 51443376), (6, 42869480), (8, 32152110), (10, 25721688), (12, 21434740), (15, 17147792), (16, 16076055), (20, 12860844), (24, 10717370), (30, 8573896), (40, 6430422), (48, 5358685), (60, 4286948), (80, 3215211), (120, 2143474), (240, 1071737), (307, 837840), (614, 418920), (921, 279280), (1228, 209460), (1535, 167568), (1842, 139640), (2456, 104730), (3070, 83784), (3491, 73680), (3684, 69820), (4605, 55856), (4912, 52365), (6140, 41892), (6982, 36840), (7368, 34910), (9210, 27928), (10473, 24560), (12280, 20946), (13964, 18420), (14736, 17455)]