23156979280

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{881}}^1\times {\mathrm{4159}}^1$

素因数の和:5132

約数の個数: 80

約数和(自身を含む): 54596505600

約数和(自身を除く): 31439526320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 881, 1264, 1580, 1762, 3160, 3524, 4159, 4405, 6320, 7048, 8318, 8810, 14096, 16636, 17620, 20795, 33272, 35240, 41590, 66544, 69599, 70480, 83180, 139198, 166360, 278396, 328561, 332720, 347995, 556792, 657122, 695990, 1113584, 1314244, 1391980, 1642805, 2628488, 2783960, 3285610, 3664079, 5256976, 5567920, 6571220, 7328158, 13142440, 14656316, 18320395, 26284880, 29312632, 36640790, 58625264, 73281580, 146563160, 289462241, 293126320, 578924482, 1157848964, 1447311205, 2315697928, 2894622410, 4631395856, 5789244820, 11578489640, 23156979280]

約数ペア:

[(1, 23156979280), (2, 11578489640), (4, 5789244820), (5, 4631395856), (8, 2894622410), (10, 2315697928), (16, 1447311205), (20, 1157848964), (40, 578924482), (79, 293126320), (80, 289462241), (158, 146563160), (316, 73281580), (395, 58625264), (632, 36640790), (790, 29312632), (881, 26284880), (1264, 18320395), (1580, 14656316), (1762, 13142440), (3160, 7328158), (3524, 6571220), (4159, 5567920), (4405, 5256976), (6320, 3664079), (7048, 3285610), (8318, 2783960), (8810, 2628488), (14096, 1642805), (16636, 1391980), (17620, 1314244), (20795, 1113584), (33272, 695990), (35240, 657122), (41590, 556792), (66544, 347995), (69599, 332720), (70480, 328561), (83180, 278396), (139198, 166360)]