638630656

素因数分解:

$2^8\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{353}}^1$

素因数の和:597

約数の個数: 72

約数和(自身を含む): 1319802624

約数和(自身を除く): 681171968

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 128, 148, 191, 256, 296, 353, 382, 592, 706, 764, 1184, 1412, 1528, 2368, 2824, 3056, 4736, 5648, 6112, 7067, 9472, 11296, 12224, 13061, 14134, 22592, 24448, 26122, 28268, 45184, 48896, 52244, 56536, 67423, 90368, 104488, 113072, 134846, 208976, 226144, 269692, 417952, 452288, 539384, 835904, 904576, 1078768, 1671808, 1809152, 2157536, 2494651, 3343616, 4315072, 4989302, 8630144, 9978604, 17260288, 19957208, 39914416, 79828832, 159657664, 319315328, 638630656]

約数ペア:

[(1, 638630656), (2, 319315328), (4, 159657664), (8, 79828832), (16, 39914416), (32, 19957208), (37, 17260288), (64, 9978604), (74, 8630144), (128, 4989302), (148, 4315072), (191, 3343616), (256, 2494651), (296, 2157536), (353, 1809152), (382, 1671808), (592, 1078768), (706, 904576), (764, 835904), (1184, 539384), (1412, 452288), (1528, 417952), (2368, 269692), (2824, 226144), (3056, 208976), (4736, 134846), (5648, 113072), (6112, 104488), (7067, 90368), (9472, 67423), (11296, 56536), (12224, 52244), (13061, 48896), (14134, 45184), (22592, 28268), (24448, 26122)]