81800280

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{25247}}^1$

素因数の和:25270

約数の個数: 80

約数和(自身を含む): 274950720

約数和(自身を除く): 193150440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 25247, 50494, 75741, 100988, 126235, 151482, 201976, 227223, 252470, 302964, 378705, 454446, 504940, 605928, 681669, 757410, 908892, 1009880, 1136115, 1363338, 1514820, 1817784, 2045007, 2272230, 2726676, 3029640, 3408345, 4090014, 4544460, 5453352, 6816690, 8180028, 9088920, 10225035, 13633380, 16360056, 20450070, 27266760, 40900140, 81800280]

約数ペア:

[(1, 81800280), (2, 40900140), (3, 27266760), (4, 20450070), (5, 16360056), (6, 13633380), (8, 10225035), (9, 9088920), (10, 8180028), (12, 6816690), (15, 5453352), (18, 4544460), (20, 4090014), (24, 3408345), (27, 3029640), (30, 2726676), (36, 2272230), (40, 2045007), (45, 1817784), (54, 1514820), (60, 1363338), (72, 1136115), (81, 1009880), (90, 908892), (108, 757410), (120, 681669), (135, 605928), (162, 504940), (180, 454446), (216, 378705), (270, 302964), (324, 252470), (360, 227223), (405, 201976), (540, 151482), (648, 126235), (810, 100988), (1080, 75741), (1620, 50494), (3240, 25247)]