28137780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1579}}^1$

素因数の和:1611

約数の個数: 120

約数和(自身を含む): 96354720

約数和(自身を除く): 68216940

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, 81, 90, 99, 108, 110, 132, 135, 162, 165, 180, 198, 220, 270, 297, 324, 330, 396, 405, 495, 540, 594, 660, 810, 891, 990, 1188, 1485, 1579, 1620, 1782, 1980, 2970, 3158, 3564, 4455, 4737, 5940, 6316, 7895, 8910, 9474, 14211, 15790, 17369, 17820, 18948, 23685, 28422, 31580, 34738, 42633, 47370, 52107, 56844, 69476, 71055, 85266, 86845, 94740, 104214, 127899, 142110, 156321, 170532, 173690, 208428, 213165, 255798, 260535, 284220, 312642, 347380, 426330, 468963, 511596, 521070, 625284, 639495, 781605, 852660, 937926, 1042140, 1278990, 1406889, 1563210, 1875852, 2344815, 2557980, 2813778, 3126420, 4689630, 5627556, 7034445, 9379260, 14068890, 28137780]

約数ペア:

[(1, 28137780), (2, 14068890), (3, 9379260), (4, 7034445), (5, 5627556), (6, 4689630), (9, 3126420), (10, 2813778), (11, 2557980), (12, 2344815), (15, 1875852), (18, 1563210), (20, 1406889), (22, 1278990), (27, 1042140), (30, 937926), (33, 852660), (36, 781605), (44, 639495), (45, 625284), (54, 521070), (55, 511596), (60, 468963), (66, 426330), (81, 347380), (90, 312642), (99, 284220), (108, 260535), (110, 255798), (132, 213165), (135, 208428), (162, 173690), (165, 170532), (180, 156321), (198, 142110), (220, 127899), (270, 104214), (297, 94740), (324, 86845), (330, 85266), (396, 71055), (405, 69476), (495, 56844), (540, 52107), (594, 47370), (660, 42633), (810, 34738), (891, 31580), (990, 28422), (1188, 23685), (1485, 18948), (1579, 17820), (1620, 17369), (1782, 15790), (1980, 14211), (2970, 9474), (3158, 8910), (3564, 7895), (4455, 6316), (4737, 5940)]