20615072

素因数分解:

$2^5\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:309

約数の個数: 48

約数和(自身を含む): 42184800

約数和(自身を除く): 21569728

約数列:

[1, 2, 4, 8, 16, 32, 59, 61, 118, 122, 179, 236, 244, 358, 472, 488, 716, 944, 976, 1432, 1888, 1952, 2864, 3599, 5728, 7198, 10561, 10919, 14396, 21122, 21838, 28792, 42244, 43676, 57584, 84488, 87352, 115168, 168976, 174704, 337952, 349408, 644221, 1288442, 2576884, 5153768, 10307536, 20615072]

約数ペア:

[(1, 20615072), (2, 10307536), (4, 5153768), (8, 2576884), (16, 1288442), (32, 644221), (59, 349408), (61, 337952), (118, 174704), (122, 168976), (179, 115168), (236, 87352), (244, 84488), (358, 57584), (472, 43676), (488, 42244), (716, 28792), (944, 21838), (976, 21122), (1432, 14396), (1888, 10919), (1952, 10561), (2864, 7198), (3599, 5728)]