18940448

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{941}}^1$

素因数の和:1005

約数の個数: 48

約数和(自身を含む): 40592664

約数和(自身を除く): 21652216

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 68, 74, 136, 148, 272, 296, 544, 592, 629, 941, 1184, 1258, 1882, 2516, 3764, 5032, 7528, 10064, 15056, 15997, 20128, 30112, 31994, 34817, 63988, 69634, 127976, 139268, 255952, 278536, 511904, 557072, 591889, 1114144, 1183778, 2367556, 4735112, 9470224, 18940448]

約数ペア:

[(1, 18940448), (2, 9470224), (4, 4735112), (8, 2367556), (16, 1183778), (17, 1114144), (32, 591889), (34, 557072), (37, 511904), (68, 278536), (74, 255952), (136, 139268), (148, 127976), (272, 69634), (296, 63988), (544, 34817), (592, 31994), (629, 30112), (941, 20128), (1184, 15997), (1258, 15056), (1882, 10064), (2516, 7528), (3764, 5032)]