20269984

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{5323}}^1$

素因数の和:5357

約数の個数: 48

約数和(自身を含む): 48299328

約数和(自身を除く): 28029344

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 68, 112, 119, 136, 224, 238, 272, 476, 544, 952, 1904, 3808, 5323, 10646, 21292, 37261, 42584, 74522, 85168, 90491, 149044, 170336, 180982, 298088, 361964, 596176, 633437, 723928, 1192352, 1266874, 1447856, 2533748, 2895712, 5067496, 10134992, 20269984]

約数ペア:

[(1, 20269984), (2, 10134992), (4, 5067496), (7, 2895712), (8, 2533748), (14, 1447856), (16, 1266874), (17, 1192352), (28, 723928), (32, 633437), (34, 596176), (56, 361964), (68, 298088), (112, 180982), (119, 170336), (136, 149044), (224, 90491), (238, 85168), (272, 74522), (476, 42584), (544, 37261), (952, 21292), (1904, 10646), (3808, 5323)]