20447640

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{6311}}^1$

素因数の和:6334

約数の個数: 80

約数和(自身を含む): 68737680

約数和(自身を除く): 48290040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 6311, 12622, 18933, 25244, 31555, 37866, 50488, 56799, 63110, 75732, 94665, 113598, 126220, 151464, 170397, 189330, 227196, 252440, 283995, 340794, 378660, 454392, 511191, 567990, 681588, 757320, 851985, 1022382, 1135980, 1363176, 1703970, 2044764, 2271960, 2555955, 3407940, 4089528, 5111910, 6815880, 10223820, 20447640]

約数ペア:

[(1, 20447640), (2, 10223820), (3, 6815880), (4, 5111910), (5, 4089528), (6, 3407940), (8, 2555955), (9, 2271960), (10, 2044764), (12, 1703970), (15, 1363176), (18, 1135980), (20, 1022382), (24, 851985), (27, 757320), (30, 681588), (36, 567990), (40, 511191), (45, 454392), (54, 378660), (60, 340794), (72, 283995), (81, 252440), (90, 227196), (108, 189330), (120, 170397), (135, 151464), (162, 126220), (180, 113598), (216, 94665), (270, 75732), (324, 63110), (360, 56799), (405, 50488), (540, 37866), (648, 31555), (810, 25244), (1080, 18933), (1620, 12622), (3240, 6311)]