20101888

素因数分解:

$2^8\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 44150400

約数和(自身を除く): 24048512

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 64, 68, 124, 128, 136, 149, 248, 256, 272, 298, 496, 527, 544, 596, 992, 1054, 1088, 1192, 1984, 2108, 2176, 2384, 2533, 3968, 4216, 4352, 4619, 4768, 5066, 7936, 8432, 9238, 9536, 10132, 16864, 18476, 19072, 20264, 33728, 36952, 38144, 40528, 67456, 73904, 78523, 81056, 134912, 147808, 157046, 162112, 295616, 314092, 324224, 591232, 628184, 648448, 1182464, 1256368, 2512736, 5025472, 10050944, 20101888]

約数ペア:

[(1, 20101888), (2, 10050944), (4, 5025472), (8, 2512736), (16, 1256368), (17, 1182464), (31, 648448), (32, 628184), (34, 591232), (62, 324224), (64, 314092), (68, 295616), (124, 162112), (128, 157046), (136, 147808), (149, 134912), (248, 81056), (256, 78523), (272, 73904), (298, 67456), (496, 40528), (527, 38144), (544, 36952), (596, 33728), (992, 20264), (1054, 19072), (1088, 18476), (1192, 16864), (1984, 10132), (2108, 9536), (2176, 9238), (2384, 8432), (2533, 7936), (3968, 5066), (4216, 4768), (4352, 4619)]