640860984

素因数分解:

$2^3\times 3^7\times {\mathrm{36629}}^1$

素因数の和:36656

約数の個数: 64

約数和(自身を含む): 1802196000

約数和(自身を除く): 1161335016

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 729, 972, 1458, 1944, 2187, 2916, 4374, 5832, 8748, 17496, 36629, 73258, 109887, 146516, 219774, 293032, 329661, 439548, 659322, 879096, 988983, 1318644, 1977966, 2637288, 2966949, 3955932, 5933898, 7911864, 8900847, 11867796, 17801694, 23735592, 26702541, 35603388, 53405082, 71206776, 80107623, 106810164, 160215246, 213620328, 320430492, 640860984]

約数ペア:

[(1, 640860984), (2, 320430492), (3, 213620328), (4, 160215246), (6, 106810164), (8, 80107623), (9, 71206776), (12, 53405082), (18, 35603388), (24, 26702541), (27, 23735592), (36, 17801694), (54, 11867796), (72, 8900847), (81, 7911864), (108, 5933898), (162, 3955932), (216, 2966949), (243, 2637288), (324, 1977966), (486, 1318644), (648, 988983), (729, 879096), (972, 659322), (1458, 439548), (1944, 329661), (2187, 293032), (2916, 219774), (4374, 146516), (5832, 109887), (8748, 73258), (17496, 36629)]