18230000

素因数分解:

$2^4\times 5^4\times {\mathrm{1823}}^1$

素因数の和:1851

約数の個数: 50

約数和(自身を含む): 44160864

約数和(自身を除く): 25930864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 1823, 2000, 2500, 3646, 5000, 7292, 9115, 10000, 14584, 18230, 29168, 36460, 45575, 72920, 91150, 145840, 182300, 227875, 364600, 455750, 729200, 911500, 1139375, 1823000, 2278750, 3646000, 4557500, 9115000, 18230000]

約数ペア:

[(1, 18230000), (2, 9115000), (4, 4557500), (5, 3646000), (8, 2278750), (10, 1823000), (16, 1139375), (20, 911500), (25, 729200), (40, 455750), (50, 364600), (80, 227875), (100, 182300), (125, 145840), (200, 91150), (250, 72920), (400, 45575), (500, 36460), (625, 29168), (1000, 18230), (1250, 14584), (1823, 10000), (2000, 9115), (2500, 7292), (3646, 5000)]