20512406072

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{593}}^1\times {\mathrm{971}}^1$

素因数の和:1704

約数の個数: 64

約数和(自身を含む): 39734465760

約数和(自身を除く): 19222059688

約数列:

[1, 2, 4, 8, 61, 73, 122, 146, 244, 292, 488, 584, 593, 971, 1186, 1942, 2372, 3884, 4453, 4744, 7768, 8906, 17812, 35624, 36173, 43289, 59231, 70883, 72346, 86578, 118462, 141766, 144692, 173156, 236924, 283532, 289384, 346312, 473848, 567064, 575803, 1151606, 2303212, 2640629, 4323863, 4606424, 5281258, 8647726, 10562516, 17295452, 21125032, 34590904, 35123983, 42033619, 70247966, 84067238, 140495932, 168134476, 280991864, 336268952, 2564050759, 5128101518, 10256203036, 20512406072]

約数ペア:

[(1, 20512406072), (2, 10256203036), (4, 5128101518), (8, 2564050759), (61, 336268952), (73, 280991864), (122, 168134476), (146, 140495932), (244, 84067238), (292, 70247966), (488, 42033619), (584, 35123983), (593, 34590904), (971, 21125032), (1186, 17295452), (1942, 10562516), (2372, 8647726), (3884, 5281258), (4453, 4606424), (4744, 4323863), (7768, 2640629), (8906, 2303212), (17812, 1151606), (35624, 575803), (36173, 567064), (43289, 473848), (59231, 346312), (70883, 289384), (72346, 283532), (86578, 236924), (118462, 173156), (141766, 144692)]