19487790

素因数分解:

$2^1\times 3^4\times 5^1\times 7^2\times {\mathrm{491}}^1$

素因数の和:524

約数の個数: 120

約数和(自身を含む): 61079832

約数和(自身を除く): 41592042

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 49, 54, 63, 70, 81, 90, 98, 105, 126, 135, 147, 162, 189, 210, 245, 270, 294, 315, 378, 405, 441, 490, 491, 567, 630, 735, 810, 882, 945, 982, 1134, 1323, 1470, 1473, 1890, 2205, 2455, 2646, 2835, 2946, 3437, 3969, 4410, 4419, 4910, 5670, 6615, 6874, 7365, 7938, 8838, 10311, 13230, 13257, 14730, 17185, 19845, 20622, 22095, 24059, 26514, 30933, 34370, 39690, 39771, 44190, 48118, 51555, 61866, 66285, 72177, 79542, 92799, 103110, 120295, 132570, 144354, 154665, 185598, 198855, 216531, 240590, 278397, 309330, 360885, 397710, 433062, 463995, 556794, 649593, 721770, 927990, 1082655, 1299186, 1391985, 1948779, 2165310, 2783970, 3247965, 3897558, 6495930, 9743895, 19487790]

約数ペア:

[(1, 19487790), (2, 9743895), (3, 6495930), (5, 3897558), (6, 3247965), (7, 2783970), (9, 2165310), (10, 1948779), (14, 1391985), (15, 1299186), (18, 1082655), (21, 927990), (27, 721770), (30, 649593), (35, 556794), (42, 463995), (45, 433062), (49, 397710), (54, 360885), (63, 309330), (70, 278397), (81, 240590), (90, 216531), (98, 198855), (105, 185598), (126, 154665), (135, 144354), (147, 132570), (162, 120295), (189, 103110), (210, 92799), (245, 79542), (270, 72177), (294, 66285), (315, 61866), (378, 51555), (405, 48118), (441, 44190), (490, 39771), (491, 39690), (567, 34370), (630, 30933), (735, 26514), (810, 24059), (882, 22095), (945, 20622), (982, 19845), (1134, 17185), (1323, 14730), (1470, 13257), (1473, 13230), (1890, 10311), (2205, 8838), (2455, 7938), (2646, 7365), (2835, 6874), (2946, 6615), (3437, 5670), (3969, 4910), (4410, 4419)]