311797816

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 715080960

約数和(自身を除く): 403283144

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 37, 43, 44, 68, 74, 86, 88, 131, 136, 148, 172, 187, 262, 296, 344, 374, 407, 473, 524, 629, 731, 748, 814, 946, 1048, 1258, 1441, 1462, 1496, 1591, 1628, 1892, 2227, 2516, 2882, 2924, 3182, 3256, 3784, 4454, 4847, 5032, 5633, 5764, 5848, 6364, 6919, 8041, 8908, 9694, 11266, 11528, 12728, 13838, 16082, 17501, 17816, 19388, 22532, 24497, 27047, 27676, 32164, 35002, 38776, 45064, 48994, 53317, 54094, 55352, 61963, 64328, 70004, 82399, 95761, 97988, 106634, 108188, 123926, 140008, 164798, 191522, 195976, 208421, 213268, 216376, 247852, 297517, 329596, 383044, 416842, 426536, 495704, 595034, 659192, 766088, 833684, 906389, 1053371, 1190068, 1667368, 1812778, 2106742, 2292631, 2380136, 3543157, 3625556, 4213484, 4585262, 7086314, 7251112, 8426968, 9170524, 14172628, 18341048, 28345256, 38974727, 77949454, 155898908, 311797816]

約数ペア:

[(1, 311797816), (2, 155898908), (4, 77949454), (8, 38974727), (11, 28345256), (17, 18341048), (22, 14172628), (34, 9170524), (37, 8426968), (43, 7251112), (44, 7086314), (68, 4585262), (74, 4213484), (86, 3625556), (88, 3543157), (131, 2380136), (136, 2292631), (148, 2106742), (172, 1812778), (187, 1667368), (262, 1190068), (296, 1053371), (344, 906389), (374, 833684), (407, 766088), (473, 659192), (524, 595034), (629, 495704), (731, 426536), (748, 416842), (814, 383044), (946, 329596), (1048, 297517), (1258, 247852), (1441, 216376), (1462, 213268), (1496, 208421), (1591, 195976), (1628, 191522), (1892, 164798), (2227, 140008), (2516, 123926), (2882, 108188), (2924, 106634), (3182, 97988), (3256, 95761), (3784, 82399), (4454, 70004), (4847, 64328), (5032, 61963), (5633, 55352), (5764, 54094), (5848, 53317), (6364, 48994), (6919, 45064), (8041, 38776), (8908, 35002), (9694, 32164), (11266, 27676), (11528, 27047), (12728, 24497), (13838, 22532), (16082, 19388), (17501, 17816)]