20679570

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{401}}^1$

素因数の和:608

約数の個数: 64

約数和(自身を含む): 55572480

約数和(自身を除く): 34892910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 191, 270, 382, 401, 573, 802, 955, 1146, 1203, 1719, 1910, 2005, 2406, 2865, 3438, 3609, 4010, 5157, 5730, 6015, 7218, 8595, 10314, 10827, 12030, 17190, 18045, 21654, 25785, 36090, 51570, 54135, 76591, 108270, 153182, 229773, 382955, 459546, 689319, 765910, 1148865, 1378638, 2067957, 2297730, 3446595, 4135914, 6893190, 10339785, 20679570]

約数ペア:

[(1, 20679570), (2, 10339785), (3, 6893190), (5, 4135914), (6, 3446595), (9, 2297730), (10, 2067957), (15, 1378638), (18, 1148865), (27, 765910), (30, 689319), (45, 459546), (54, 382955), (90, 229773), (135, 153182), (191, 108270), (270, 76591), (382, 54135), (401, 51570), (573, 36090), (802, 25785), (955, 21654), (1146, 18045), (1203, 17190), (1719, 12030), (1910, 10827), (2005, 10314), (2406, 8595), (2865, 7218), (3438, 6015), (3609, 5730), (4010, 5157)]