26858325

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^3\times {\mathrm{163}}^1$

素因数の和:215

約数の個数: 48

約数和(自身を含む): 48399680

約数和(自身を除く): 21541355

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 163, 169, 195, 325, 489, 507, 815, 845, 975, 2119, 2197, 2445, 2535, 4075, 4225, 6357, 6591, 10595, 10985, 12225, 12675, 27547, 31785, 32955, 52975, 54925, 82641, 137735, 158925, 164775, 358111, 413205, 688675, 1074333, 1790555, 2066025, 5371665, 8952775, 26858325]

約数ペア:

[(1, 26858325), (3, 8952775), (5, 5371665), (13, 2066025), (15, 1790555), (25, 1074333), (39, 688675), (65, 413205), (75, 358111), (163, 164775), (169, 158925), (195, 137735), (325, 82641), (489, 54925), (507, 52975), (815, 32955), (845, 31785), (975, 27547), (2119, 12675), (2197, 12225), (2445, 10985), (2535, 10595), (4075, 6591), (4225, 6357)]