1391331584

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{881}}^1$

素因数の和:1127

約数の個数: 72

約数和(自身を含む): 2884492800

約数和(自身を除く): 1493161216

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 199, 248, 256, 398, 496, 796, 881, 992, 1592, 1762, 1984, 3184, 3524, 3968, 6169, 6368, 7048, 7936, 12338, 12736, 14096, 24676, 25472, 27311, 28192, 49352, 50944, 54622, 56384, 98704, 109244, 112768, 175319, 197408, 218488, 225536, 350638, 394816, 436976, 701276, 789632, 873952, 1402552, 1579264, 1747904, 2805104, 3495808, 5434889, 5610208, 6991616, 10869778, 11220416, 21739556, 22440832, 43479112, 44881664, 86958224, 173916448, 347832896, 695665792, 1391331584]

約数ペア:

[(1, 1391331584), (2, 695665792), (4, 347832896), (8, 173916448), (16, 86958224), (31, 44881664), (32, 43479112), (62, 22440832), (64, 21739556), (124, 11220416), (128, 10869778), (199, 6991616), (248, 5610208), (256, 5434889), (398, 3495808), (496, 2805104), (796, 1747904), (881, 1579264), (992, 1402552), (1592, 873952), (1762, 789632), (1984, 701276), (3184, 436976), (3524, 394816), (3968, 350638), (6169, 225536), (6368, 218488), (7048, 197408), (7936, 175319), (12338, 112768), (12736, 109244), (14096, 98704), (24676, 56384), (25472, 54622), (27311, 50944), (28192, 49352)]