18081700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1987}}^1$

素因数の和:2021

約数の個数: 72

約数和(自身を含む): 48316352

約数和(自身を除く): 30234652

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 1987, 2275, 3974, 4550, 7948, 9100, 9935, 13909, 19870, 25831, 27818, 39740, 49675, 51662, 55636, 69545, 99350, 103324, 129155, 139090, 180817, 198700, 258310, 278180, 347725, 361634, 516620, 645775, 695450, 723268, 904085, 1291550, 1390900, 1808170, 2583100, 3616340, 4520425, 9040850, 18081700]

約数ペア:

[(1, 18081700), (2, 9040850), (4, 4520425), (5, 3616340), (7, 2583100), (10, 1808170), (13, 1390900), (14, 1291550), (20, 904085), (25, 723268), (26, 695450), (28, 645775), (35, 516620), (50, 361634), (52, 347725), (65, 278180), (70, 258310), (91, 198700), (100, 180817), (130, 139090), (140, 129155), (175, 103324), (182, 99350), (260, 69545), (325, 55636), (350, 51662), (364, 49675), (455, 39740), (650, 27818), (700, 25831), (910, 19870), (1300, 13909), (1820, 9935), (1987, 9100), (2275, 7948), (3974, 4550)]