399749680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{1433}}^1$

素因数の和:1774

約数の個数: 80

約数和(自身を含む): 1017818784

約数和(自身を除く): 618069104

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 317, 440, 634, 880, 1268, 1433, 1585, 2536, 2866, 3170, 3487, 5072, 5732, 6340, 6974, 7165, 11464, 12680, 13948, 14330, 15763, 17435, 22928, 25360, 27896, 28660, 31526, 34870, 55792, 57320, 63052, 69740, 78815, 114640, 126104, 139480, 157630, 252208, 278960, 315260, 454261, 630520, 908522, 1261040, 1817044, 2271305, 3634088, 4542610, 4996871, 7268176, 9085220, 9993742, 18170440, 19987484, 24984355, 36340880, 39974968, 49968710, 79949936, 99937420, 199874840, 399749680]

約数ペア:

[(1, 399749680), (2, 199874840), (4, 99937420), (5, 79949936), (8, 49968710), (10, 39974968), (11, 36340880), (16, 24984355), (20, 19987484), (22, 18170440), (40, 9993742), (44, 9085220), (55, 7268176), (80, 4996871), (88, 4542610), (110, 3634088), (176, 2271305), (220, 1817044), (317, 1261040), (440, 908522), (634, 630520), (880, 454261), (1268, 315260), (1433, 278960), (1585, 252208), (2536, 157630), (2866, 139480), (3170, 126104), (3487, 114640), (5072, 78815), (5732, 69740), (6340, 63052), (6974, 57320), (7165, 55792), (11464, 34870), (12680, 31526), (13948, 28660), (14330, 27896), (15763, 25360), (17435, 22928)]