80888880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:235

約数の個数: 160

約数和(自身を含む): 262268928

約数和(自身を除く): 181380048

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 47, 48, 60, 71, 80, 94, 101, 120, 141, 142, 188, 202, 213, 235, 240, 282, 284, 303, 355, 376, 404, 426, 470, 505, 564, 568, 606, 705, 710, 752, 808, 852, 940, 1010, 1065, 1128, 1136, 1212, 1410, 1420, 1515, 1616, 1704, 1880, 2020, 2130, 2256, 2424, 2820, 2840, 3030, 3337, 3408, 3760, 4040, 4260, 4747, 4848, 5640, 5680, 6060, 6674, 7171, 8080, 8520, 9494, 10011, 11280, 12120, 13348, 14241, 14342, 16685, 17040, 18988, 20022, 21513, 23735, 24240, 26696, 28482, 28684, 33370, 35855, 37976, 40044, 43026, 47470, 50055, 53392, 56964, 57368, 66740, 71205, 71710, 75952, 80088, 86052, 94940, 100110, 107565, 113928, 114736, 133480, 142410, 143420, 160176, 172104, 189880, 200220, 215130, 227856, 266960, 284820, 286840, 337037, 344208, 379760, 400440, 430260, 569640, 573680, 674074, 800880, 860520, 1011111, 1139280, 1348148, 1685185, 1721040, 2022222, 2696296, 3370370, 4044444, 5055555, 5392592, 6740740, 8088888, 10111110, 13481480, 16177776, 20222220, 26962960, 40444440, 80888880]

約数ペア:

[(1, 80888880), (2, 40444440), (3, 26962960), (4, 20222220), (5, 16177776), (6, 13481480), (8, 10111110), (10, 8088888), (12, 6740740), (15, 5392592), (16, 5055555), (20, 4044444), (24, 3370370), (30, 2696296), (40, 2022222), (47, 1721040), (48, 1685185), (60, 1348148), (71, 1139280), (80, 1011111), (94, 860520), (101, 800880), (120, 674074), (141, 573680), (142, 569640), (188, 430260), (202, 400440), (213, 379760), (235, 344208), (240, 337037), (282, 286840), (284, 284820), (303, 266960), (355, 227856), (376, 215130), (404, 200220), (426, 189880), (470, 172104), (505, 160176), (564, 143420), (568, 142410), (606, 133480), (705, 114736), (710, 113928), (752, 107565), (808, 100110), (852, 94940), (940, 86052), (1010, 80088), (1065, 75952), (1128, 71710), (1136, 71205), (1212, 66740), (1410, 57368), (1420, 56964), (1515, 53392), (1616, 50055), (1704, 47470), (1880, 43026), (2020, 40044), (2130, 37976), (2256, 35855), (2424, 33370), (2820, 28684), (2840, 28482), (3030, 26696), (3337, 24240), (3408, 23735), (3760, 21513), (4040, 20022), (4260, 18988), (4747, 17040), (4848, 16685), (5640, 14342), (5680, 14241), (6060, 13348), (6674, 12120), (7171, 11280), (8080, 10011), (8520, 9494)]