20783936

素因数分解:

$2^6\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:247

約数の個数: 56

約数和(自身を含む): 43318176

約数和(自身を除く): 22534240

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 67, 74, 131, 134, 148, 262, 268, 296, 524, 536, 592, 1048, 1072, 1184, 2096, 2144, 2368, 2479, 4192, 4288, 4847, 4958, 8384, 8777, 9694, 9916, 17554, 19388, 19832, 35108, 38776, 39664, 70216, 77552, 79328, 140432, 155104, 158656, 280864, 310208, 324749, 561728, 649498, 1298996, 2597992, 5195984, 10391968, 20783936]

約数ペア:

[(1, 20783936), (2, 10391968), (4, 5195984), (8, 2597992), (16, 1298996), (32, 649498), (37, 561728), (64, 324749), (67, 310208), (74, 280864), (131, 158656), (134, 155104), (148, 140432), (262, 79328), (268, 77552), (296, 70216), (524, 39664), (536, 38776), (592, 35108), (1048, 19832), (1072, 19388), (1184, 17554), (2096, 9916), (2144, 9694), (2368, 8777), (2479, 8384), (4192, 4958), (4288, 4847)]