399291376

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1181}}^1$

素因数の和:1330

約数の個数: 80

約数和(自身を含む): 902272608

約数和(自身を除く): 502981232

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 113, 136, 176, 187, 226, 272, 374, 452, 748, 904, 1181, 1243, 1496, 1808, 1921, 2362, 2486, 2992, 3842, 4724, 4972, 7684, 9448, 9944, 12991, 15368, 18896, 19888, 20077, 21131, 25982, 30736, 40154, 42262, 51964, 80308, 84524, 103928, 133453, 160616, 169048, 207856, 220847, 266906, 321232, 338096, 441694, 533812, 883388, 1067624, 1467983, 1766776, 2135248, 2268701, 2935966, 3533552, 4537402, 5871932, 9074804, 11743864, 18149608, 23487728, 24955711, 36299216, 49911422, 99822844, 199645688, 399291376]

約数ペア:

[(1, 399291376), (2, 199645688), (4, 99822844), (8, 49911422), (11, 36299216), (16, 24955711), (17, 23487728), (22, 18149608), (34, 11743864), (44, 9074804), (68, 5871932), (88, 4537402), (113, 3533552), (136, 2935966), (176, 2268701), (187, 2135248), (226, 1766776), (272, 1467983), (374, 1067624), (452, 883388), (748, 533812), (904, 441694), (1181, 338096), (1243, 321232), (1496, 266906), (1808, 220847), (1921, 207856), (2362, 169048), (2486, 160616), (2992, 133453), (3842, 103928), (4724, 84524), (4972, 80308), (7684, 51964), (9448, 42262), (9944, 40154), (12991, 30736), (15368, 25982), (18896, 21131), (19888, 20077)]