18481540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1091}}^1$

素因数の和:1129

約数の個数: 72

約数和(自身を含む): 48799296

約数和(自身を除く): 30317756

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1091, 1210, 1540, 1694, 2182, 2420, 3388, 4235, 4364, 5455, 7637, 8470, 10910, 12001, 15274, 16940, 21820, 24002, 30548, 38185, 48004, 60005, 76370, 84007, 120010, 132011, 152740, 168014, 240020, 264022, 336028, 420035, 528044, 660055, 840070, 924077, 1320110, 1680140, 1848154, 2640220, 3696308, 4620385, 9240770, 18481540]

約数ペア:

[(1, 18481540), (2, 9240770), (4, 4620385), (5, 3696308), (7, 2640220), (10, 1848154), (11, 1680140), (14, 1320110), (20, 924077), (22, 840070), (28, 660055), (35, 528044), (44, 420035), (55, 336028), (70, 264022), (77, 240020), (110, 168014), (121, 152740), (140, 132011), (154, 120010), (220, 84007), (242, 76370), (308, 60005), (385, 48004), (484, 38185), (605, 30548), (770, 24002), (847, 21820), (1091, 16940), (1210, 15274), (1540, 12001), (1694, 10910), (2182, 8470), (2420, 7637), (3388, 5455), (4235, 4364)]