399519568

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{5003}}^1$

素因数の和:5072

約数の個数: 80

約数和(自身を含む): 953081856

約数和(自身を除く): 553562288

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 31, 46, 56, 62, 92, 112, 124, 161, 184, 217, 248, 322, 368, 434, 496, 644, 713, 868, 1288, 1426, 1736, 2576, 2852, 3472, 4991, 5003, 5704, 9982, 10006, 11408, 19964, 20012, 35021, 39928, 40024, 70042, 79856, 80048, 115069, 140084, 155093, 230138, 280168, 310186, 460276, 560336, 620372, 805483, 920552, 1085651, 1240744, 1610966, 1841104, 2171302, 2481488, 3221932, 3567139, 4342604, 6443864, 7134278, 8685208, 12887728, 14268556, 17370416, 24969973, 28537112, 49939946, 57074224, 99879892, 199759784, 399519568]

約数ペア:

[(1, 399519568), (2, 199759784), (4, 99879892), (7, 57074224), (8, 49939946), (14, 28537112), (16, 24969973), (23, 17370416), (28, 14268556), (31, 12887728), (46, 8685208), (56, 7134278), (62, 6443864), (92, 4342604), (112, 3567139), (124, 3221932), (161, 2481488), (184, 2171302), (217, 1841104), (248, 1610966), (322, 1240744), (368, 1085651), (434, 920552), (496, 805483), (644, 620372), (713, 560336), (868, 460276), (1288, 310186), (1426, 280168), (1736, 230138), (2576, 155093), (2852, 140084), (3472, 115069), (4991, 80048), (5003, 79856), (5704, 70042), (9982, 40024), (10006, 39928), (11408, 35021), (19964, 20012)]