18914640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1487}}^1$

素因数の和:1556

約数の個数: 80

約数和(自身を含む): 59781888

約数和(自身を除く): 40867248

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 53, 60, 80, 106, 120, 159, 212, 240, 265, 318, 424, 530, 636, 795, 848, 1060, 1272, 1487, 1590, 2120, 2544, 2974, 3180, 4240, 4461, 5948, 6360, 7435, 8922, 11896, 12720, 14870, 17844, 22305, 23792, 29740, 35688, 44610, 59480, 71376, 78811, 89220, 118960, 157622, 178440, 236433, 315244, 356880, 394055, 472866, 630488, 788110, 945732, 1182165, 1260976, 1576220, 1891464, 2364330, 3152440, 3782928, 4728660, 6304880, 9457320, 18914640]

約数ペア:

[(1, 18914640), (2, 9457320), (3, 6304880), (4, 4728660), (5, 3782928), (6, 3152440), (8, 2364330), (10, 1891464), (12, 1576220), (15, 1260976), (16, 1182165), (20, 945732), (24, 788110), (30, 630488), (40, 472866), (48, 394055), (53, 356880), (60, 315244), (80, 236433), (106, 178440), (120, 157622), (159, 118960), (212, 89220), (240, 78811), (265, 71376), (318, 59480), (424, 44610), (530, 35688), (636, 29740), (795, 23792), (848, 22305), (1060, 17844), (1272, 14870), (1487, 12720), (1590, 11896), (2120, 8922), (2544, 7435), (2974, 6360), (3180, 5948), (4240, 4461)]