40319648

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{541}}^1$

素因数の和:705

約数の個数: 48

約数和(自身を含む): 84818664

約数和(自身を除く): 44499016

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 136, 137, 272, 274, 541, 544, 548, 1082, 1096, 2164, 2192, 2329, 4328, 4384, 4658, 8656, 9197, 9316, 17312, 18394, 18632, 36788, 37264, 73576, 74117, 74528, 147152, 148234, 294304, 296468, 592936, 1185872, 1259989, 2371744, 2519978, 5039956, 10079912, 20159824, 40319648]

約数ペア:

[(1, 40319648), (2, 20159824), (4, 10079912), (8, 5039956), (16, 2519978), (17, 2371744), (32, 1259989), (34, 1185872), (68, 592936), (136, 296468), (137, 294304), (272, 148234), (274, 147152), (541, 74528), (544, 74117), (548, 73576), (1082, 37264), (1096, 36788), (2164, 18632), (2192, 18394), (2329, 17312), (4328, 9316), (4384, 9197), (4658, 8656)]