31500900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{3889}}^1$

素因数の和:3915

約数の個数: 90

約数和(自身を含む): 102139730

約数和(自身を除く): 70638830

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 270, 300, 324, 405, 450, 540, 675, 810, 900, 1350, 1620, 2025, 2700, 3889, 4050, 7778, 8100, 11667, 15556, 19445, 23334, 35001, 38890, 46668, 58335, 70002, 77780, 97225, 105003, 116670, 140004, 175005, 194450, 210006, 233340, 291675, 315009, 350010, 388900, 420012, 525015, 583350, 630018, 700020, 875025, 1050030, 1166700, 1260036, 1575045, 1750050, 2100060, 2625075, 3150090, 3500100, 5250150, 6300180, 7875225, 10500300, 15750450, 31500900]

約数ペア:

[(1, 31500900), (2, 15750450), (3, 10500300), (4, 7875225), (5, 6300180), (6, 5250150), (9, 3500100), (10, 3150090), (12, 2625075), (15, 2100060), (18, 1750050), (20, 1575045), (25, 1260036), (27, 1166700), (30, 1050030), (36, 875025), (45, 700020), (50, 630018), (54, 583350), (60, 525015), (75, 420012), (81, 388900), (90, 350010), (100, 315009), (108, 291675), (135, 233340), (150, 210006), (162, 194450), (180, 175005), (225, 140004), (270, 116670), (300, 105003), (324, 97225), (405, 77780), (450, 70002), (540, 58335), (675, 46668), (810, 38890), (900, 35001), (1350, 23334), (1620, 19445), (2025, 15556), (2700, 11667), (3889, 8100), (4050, 7778)]