20726280

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{6397}}^1$

素因数の和:6420

約数の個数: 80

約数和(自身を含む): 69674220

約数和(自身を除く): 48947940

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, 6397, 12794, 19191, 25588, 31985, 38382, 51176, 57573, 63970, 76764, 95955, 115146, 127940, 153528, 172719, 191910, 230292, 255880, 287865, 345438, 383820, 460584, 518157, 575730, 690876, 767640, 863595, 1036314, 1151460, 1381752, 1727190, 2072628, 2302920, 2590785, 3454380, 4145256, 5181570, 6908760, 10363140, 20726280]

約数ペア:

[(1, 20726280), (2, 10363140), (3, 6908760), (4, 5181570), (5, 4145256), (6, 3454380), (8, 2590785), (9, 2302920), (10, 2072628), (12, 1727190), (15, 1381752), (18, 1151460), (20, 1036314), (24, 863595), (27, 767640), (30, 690876), (36, 575730), (40, 518157), (45, 460584), (54, 383820), (60, 345438), (72, 287865), (81, 255880), (90, 230292), (108, 191910), (120, 172719), (135, 153528), (162, 127940), (180, 115146), (216, 95955), (270, 76764), (324, 63970), (360, 57573), (405, 51176), (540, 38382), (648, 31985), (810, 25588), (1080, 19191), (1620, 12794), (3240, 6397)]