81898180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2647}}^1$

素因数の和:2693

約数の個数: 96

約数和(自身を含む): 224211456

約数和(自身を除く): 142313276

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 17, 20, 26, 28, 34, 35, 52, 65, 68, 70, 85, 91, 119, 130, 140, 170, 182, 221, 238, 260, 340, 364, 442, 455, 476, 595, 884, 910, 1105, 1190, 1547, 1820, 2210, 2380, 2647, 3094, 4420, 5294, 6188, 7735, 10588, 13235, 15470, 18529, 26470, 30940, 34411, 37058, 44999, 52940, 68822, 74116, 89998, 92645, 137644, 172055, 179996, 185290, 224995, 240877, 314993, 344110, 370580, 449990, 481754, 584987, 629986, 688220, 899980, 963508, 1169974, 1204385, 1259972, 1574965, 2339948, 2408770, 2924935, 3149930, 4094909, 4817540, 5849870, 6299860, 8189818, 11699740, 16379636, 20474545, 40949090, 81898180]

約数ペア:

[(1, 81898180), (2, 40949090), (4, 20474545), (5, 16379636), (7, 11699740), (10, 8189818), (13, 6299860), (14, 5849870), (17, 4817540), (20, 4094909), (26, 3149930), (28, 2924935), (34, 2408770), (35, 2339948), (52, 1574965), (65, 1259972), (68, 1204385), (70, 1169974), (85, 963508), (91, 899980), (119, 688220), (130, 629986), (140, 584987), (170, 481754), (182, 449990), (221, 370580), (238, 344110), (260, 314993), (340, 240877), (364, 224995), (442, 185290), (455, 179996), (476, 172055), (595, 137644), (884, 92645), (910, 89998), (1105, 74116), (1190, 68822), (1547, 52940), (1820, 44999), (2210, 37058), (2380, 34411), (2647, 30940), (3094, 26470), (4420, 18529), (5294, 15470), (6188, 13235), (7735, 10588)]