22019960440

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1523}}^1\times {\mathrm{1997}}^1$

素因数の和:3712

約数の個数: 64

約数和(自身を含む): 49876313760

約数和(自身を除く): 27856353320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1523, 1810, 1997, 3046, 3620, 3994, 6092, 7240, 7615, 7988, 9985, 12184, 15230, 15976, 19970, 30460, 39940, 60920, 79880, 275663, 361457, 551326, 722914, 1102652, 1378315, 1445828, 1807285, 2205304, 2756630, 2891656, 3041431, 3614570, 5513260, 6082862, 7229140, 11026520, 12165724, 14458280, 15207155, 24331448, 30414310, 60828620, 121657240, 550499011, 1100998022, 2201996044, 2752495055, 4403992088, 5504990110, 11009980220, 22019960440]

約数ペア:

[(1, 22019960440), (2, 11009980220), (4, 5504990110), (5, 4403992088), (8, 2752495055), (10, 2201996044), (20, 1100998022), (40, 550499011), (181, 121657240), (362, 60828620), (724, 30414310), (905, 24331448), (1448, 15207155), (1523, 14458280), (1810, 12165724), (1997, 11026520), (3046, 7229140), (3620, 6082862), (3994, 5513260), (6092, 3614570), (7240, 3041431), (7615, 2891656), (7988, 2756630), (9985, 2205304), (12184, 1807285), (15230, 1445828), (15976, 1378315), (19970, 1102652), (30460, 722914), (39940, 551326), (60920, 361457), (79880, 275663)]