399999392

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{347}}^1$

素因数の和:550

約数の個数: 96

約数和(自身を含む): 906075072

約数和(自身を除く): 506075680

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 163, 208, 221, 272, 326, 347, 416, 442, 544, 652, 694, 884, 1304, 1388, 1768, 2119, 2608, 2771, 2776, 3536, 4238, 4511, 5216, 5542, 5552, 5899, 7072, 8476, 9022, 11084, 11104, 11798, 16952, 18044, 22168, 23596, 33904, 36023, 36088, 44336, 47192, 56561, 67808, 72046, 72176, 76687, 88672, 94384, 113122, 144092, 144352, 153374, 188768, 226244, 288184, 306748, 452488, 576368, 613496, 735293, 904976, 961537, 1152736, 1226992, 1470586, 1809952, 1923074, 2453984, 2941172, 3846148, 5882344, 7692296, 11764688, 12499981, 15384592, 23529376, 24999962, 30769184, 49999924, 99999848, 199999696, 399999392]

約数ペア:

[(1, 399999392), (2, 199999696), (4, 99999848), (8, 49999924), (13, 30769184), (16, 24999962), (17, 23529376), (26, 15384592), (32, 12499981), (34, 11764688), (52, 7692296), (68, 5882344), (104, 3846148), (136, 2941172), (163, 2453984), (208, 1923074), (221, 1809952), (272, 1470586), (326, 1226992), (347, 1152736), (416, 961537), (442, 904976), (544, 735293), (652, 613496), (694, 576368), (884, 452488), (1304, 306748), (1388, 288184), (1768, 226244), (2119, 188768), (2608, 153374), (2771, 144352), (2776, 144092), (3536, 113122), (4238, 94384), (4511, 88672), (5216, 76687), (5542, 72176), (5552, 72046), (5899, 67808), (7072, 56561), (8476, 47192), (9022, 44336), (11084, 36088), (11104, 36023), (11798, 33904), (16952, 23596), (18044, 22168)]