19311500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2971}}^1$

素因数の和:3003

約数の個数: 48

約数和(自身を含む): 45435936

約数和(自身を除く): 26124436

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 2971, 3250, 5942, 6500, 11884, 14855, 29710, 38623, 59420, 74275, 77246, 148550, 154492, 193115, 297100, 371375, 386230, 742750, 772460, 965575, 1485500, 1931150, 3862300, 4827875, 9655750, 19311500]

約数ペア:

[(1, 19311500), (2, 9655750), (4, 4827875), (5, 3862300), (10, 1931150), (13, 1485500), (20, 965575), (25, 772460), (26, 742750), (50, 386230), (52, 371375), (65, 297100), (100, 193115), (125, 154492), (130, 148550), (250, 77246), (260, 74275), (325, 59420), (500, 38623), (650, 29710), (1300, 14855), (1625, 11884), (2971, 6500), (3250, 5942)]