20653680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1831}}^1$

素因数の和:1894

約数の個数: 80

約数和(自身を含む): 65424384

約数和(自身を除く): 44770704

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 47, 48, 60, 80, 94, 120, 141, 188, 235, 240, 282, 376, 470, 564, 705, 752, 940, 1128, 1410, 1831, 1880, 2256, 2820, 3662, 3760, 5493, 5640, 7324, 9155, 10986, 11280, 14648, 18310, 21972, 27465, 29296, 36620, 43944, 54930, 73240, 86057, 87888, 109860, 146480, 172114, 219720, 258171, 344228, 430285, 439440, 516342, 688456, 860570, 1032684, 1290855, 1376912, 1721140, 2065368, 2581710, 3442280, 4130736, 5163420, 6884560, 10326840, 20653680]

約数ペア:

[(1, 20653680), (2, 10326840), (3, 6884560), (4, 5163420), (5, 4130736), (6, 3442280), (8, 2581710), (10, 2065368), (12, 1721140), (15, 1376912), (16, 1290855), (20, 1032684), (24, 860570), (30, 688456), (40, 516342), (47, 439440), (48, 430285), (60, 344228), (80, 258171), (94, 219720), (120, 172114), (141, 146480), (188, 109860), (235, 87888), (240, 86057), (282, 73240), (376, 54930), (470, 43944), (564, 36620), (705, 29296), (752, 27465), (940, 21972), (1128, 18310), (1410, 14648), (1831, 11280), (1880, 10986), (2256, 9155), (2820, 7324), (3662, 5640), (3760, 5493)]