391191728

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1$

素因数の和:762

約数の個数: 80

約数和(自身を含む): 833089536

約数和(自身を除く): 441897808

約数列:

[1, 2, 4, 8, 16, 23, 31, 46, 53, 62, 92, 106, 124, 184, 212, 248, 368, 424, 496, 647, 713, 848, 1219, 1294, 1426, 1643, 2438, 2588, 2852, 3286, 4876, 5176, 5704, 6572, 9752, 10352, 11408, 13144, 14881, 19504, 20057, 26288, 29762, 34291, 37789, 40114, 59524, 68582, 75578, 80228, 119048, 137164, 151156, 160456, 238096, 274328, 302312, 320912, 461311, 548656, 604624, 788693, 922622, 1063021, 1577386, 1845244, 2126042, 3154772, 3690488, 4252084, 6309544, 7380976, 8504168, 12619088, 17008336, 24449483, 48898966, 97797932, 195595864, 391191728]

約数ペア:

[(1, 391191728), (2, 195595864), (4, 97797932), (8, 48898966), (16, 24449483), (23, 17008336), (31, 12619088), (46, 8504168), (53, 7380976), (62, 6309544), (92, 4252084), (106, 3690488), (124, 3154772), (184, 2126042), (212, 1845244), (248, 1577386), (368, 1063021), (424, 922622), (496, 788693), (647, 604624), (713, 548656), (848, 461311), (1219, 320912), (1294, 302312), (1426, 274328), (1643, 238096), (2438, 160456), (2588, 151156), (2852, 137164), (3286, 119048), (4876, 80228), (5176, 75578), (5704, 68582), (6572, 59524), (9752, 40114), (10352, 37789), (11408, 34291), (13144, 29762), (14881, 26288), (19504, 20057)]