18919250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{569}}^1$

素因数の和:612

約数の個数: 64

約数和(自身を含む): 42681600

約数和(自身を除く): 23762350

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 35, 38, 50, 70, 95, 125, 133, 175, 190, 250, 266, 350, 475, 569, 665, 875, 950, 1138, 1330, 1750, 2375, 2845, 3325, 3983, 4750, 5690, 6650, 7966, 10811, 14225, 16625, 19915, 21622, 28450, 33250, 39830, 54055, 71125, 75677, 99575, 108110, 142250, 151354, 199150, 270275, 378385, 497875, 540550, 756770, 995750, 1351375, 1891925, 2702750, 3783850, 9459625, 18919250]

約数ペア:

[(1, 18919250), (2, 9459625), (5, 3783850), (7, 2702750), (10, 1891925), (14, 1351375), (19, 995750), (25, 756770), (35, 540550), (38, 497875), (50, 378385), (70, 270275), (95, 199150), (125, 151354), (133, 142250), (175, 108110), (190, 99575), (250, 75677), (266, 71125), (350, 54055), (475, 39830), (569, 33250), (665, 28450), (875, 21622), (950, 19915), (1138, 16625), (1330, 14225), (1750, 10811), (2375, 7966), (2845, 6650), (3325, 5690), (3983, 4750)]