2156220

素因数分解:

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

素因数の和:54

約数の個数: 120

約数和(自身を含む): 7440048

約数和(自身を除く): 5283828

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, 121, 132, 135, 162, 165, 180, 198, 220, 242, 270, 297, 324, 330, 363, 396, 405, 484, 495, 540, 594, 605, 660, 726, 810, 891, 990, 1089, 1188, 1210, 1331, 1452, 1485, 1620, 1782, 1815, 1980, 2178, 2420, 2662, 2970, 3267, 3564, 3630, 3993, 4356, 4455, 5324, 5445, 5940, 6534, 6655, 7260, 7986, 8910, 9801, 10890, 11979, 13068, 13310, 15972, 16335, 17820, 19602, 19965, 21780, 23958, 26620, 32670, 35937, 39204, 39930, 47916, 49005, 59895, 65340, 71874, 79860, 98010, 107811, 119790, 143748, 179685, 196020, 215622, 239580, 359370, 431244, 539055, 718740, 1078110, 2156220]

約数ペア:

[(1, 2156220), (2, 1078110), (3, 718740), (4, 539055), (5, 431244), (6, 359370), (9, 239580), (10, 215622), (11, 196020), (12, 179685), (15, 143748), (18, 119790), (20, 107811), (22, 98010), (27, 79860), (30, 71874), (33, 65340), (36, 59895), (44, 49005), (45, 47916), (54, 39930), (55, 39204), (60, 35937), (66, 32670), (81, 26620), (90, 23958), (99, 21780), (108, 19965), (110, 19602), (121, 17820), (132, 16335), (135, 15972), (162, 13310), (165, 13068), (180, 11979), (198, 10890), (220, 9801), (242, 8910), (270, 7986), (297, 7260), (324, 6655), (330, 6534), (363, 5940), (396, 5445), (405, 5324), (484, 4455), (495, 4356), (540, 3993), (594, 3630), (605, 3564), (660, 3267), (726, 2970), (810, 2662), (891, 2420), (990, 2178), (1089, 1980), (1188, 1815), (1210, 1782), (1331, 1620), (1452, 1485)]