20986020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3533}}^1$

素因数の和:3562

約数の個数: 96

約数和(自身を含む): 71245440

約数和(自身を除く): 50259420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 90, 99, 108, 110, 132, 135, 165, 180, 198, 220, 270, 297, 330, 396, 495, 540, 594, 660, 990, 1188, 1485, 1980, 2970, 3533, 5940, 7066, 10599, 14132, 17665, 21198, 31797, 35330, 38863, 42396, 52995, 63594, 70660, 77726, 95391, 105990, 116589, 127188, 155452, 158985, 190782, 194315, 211980, 233178, 317970, 349767, 381564, 388630, 466356, 476955, 582945, 635940, 699534, 777260, 953910, 1049301, 1165890, 1399068, 1748835, 1907820, 2098602, 2331780, 3497670, 4197204, 5246505, 6995340, 10493010, 20986020]

約数ペア:

[(1, 20986020), (2, 10493010), (3, 6995340), (4, 5246505), (5, 4197204), (6, 3497670), (9, 2331780), (10, 2098602), (11, 1907820), (12, 1748835), (15, 1399068), (18, 1165890), (20, 1049301), (22, 953910), (27, 777260), (30, 699534), (33, 635940), (36, 582945), (44, 476955), (45, 466356), (54, 388630), (55, 381564), (60, 349767), (66, 317970), (90, 233178), (99, 211980), (108, 194315), (110, 190782), (132, 158985), (135, 155452), (165, 127188), (180, 116589), (198, 105990), (220, 95391), (270, 77726), (297, 70660), (330, 63594), (396, 52995), (495, 42396), (540, 38863), (594, 35330), (660, 31797), (990, 21198), (1188, 17665), (1485, 14132), (1980, 10599), (2970, 7066), (3533, 5940)]