20719680

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{191}}^1$

素因数の和:324

約数の個数: 112

約数和(自身を含む): 66714624

約数和(自身を除く): 45994944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 113, 120, 160, 191, 192, 226, 240, 320, 339, 382, 452, 480, 565, 573, 678, 764, 904, 955, 960, 1130, 1146, 1356, 1528, 1695, 1808, 1910, 2260, 2292, 2712, 2865, 3056, 3390, 3616, 3820, 4520, 4584, 5424, 5730, 6112, 6780, 7232, 7640, 9040, 9168, 10848, 11460, 12224, 13560, 15280, 18080, 18336, 21583, 21696, 22920, 27120, 30560, 36160, 36672, 43166, 45840, 54240, 61120, 64749, 86332, 91680, 107915, 108480, 129498, 172664, 183360, 215830, 258996, 323745, 345328, 431660, 517992, 647490, 690656, 863320, 1035984, 1294980, 1381312, 1726640, 2071968, 2589960, 3453280, 4143936, 5179920, 6906560, 10359840, 20719680]

約数ペア:

[(1, 20719680), (2, 10359840), (3, 6906560), (4, 5179920), (5, 4143936), (6, 3453280), (8, 2589960), (10, 2071968), (12, 1726640), (15, 1381312), (16, 1294980), (20, 1035984), (24, 863320), (30, 690656), (32, 647490), (40, 517992), (48, 431660), (60, 345328), (64, 323745), (80, 258996), (96, 215830), (113, 183360), (120, 172664), (160, 129498), (191, 108480), (192, 107915), (226, 91680), (240, 86332), (320, 64749), (339, 61120), (382, 54240), (452, 45840), (480, 43166), (565, 36672), (573, 36160), (678, 30560), (764, 27120), (904, 22920), (955, 21696), (960, 21583), (1130, 18336), (1146, 18080), (1356, 15280), (1528, 13560), (1695, 12224), (1808, 11460), (1910, 10848), (2260, 9168), (2292, 9040), (2712, 7640), (2865, 7232), (3056, 6780), (3390, 6112), (3616, 5730), (3820, 5424), (4520, 4584)]