19161400

素因数分解:

$2^3\times 5^2\times {\mathrm{149}}^1\times {\mathrm{643}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 44919000

約数和(自身を除く): 25757600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 149, 200, 298, 596, 643, 745, 1192, 1286, 1490, 2572, 2980, 3215, 3725, 5144, 5960, 6430, 7450, 12860, 14900, 16075, 25720, 29800, 32150, 64300, 95807, 128600, 191614, 383228, 479035, 766456, 958070, 1916140, 2395175, 3832280, 4790350, 9580700, 19161400]

約数ペア:

[(1, 19161400), (2, 9580700), (4, 4790350), (5, 3832280), (8, 2395175), (10, 1916140), (20, 958070), (25, 766456), (40, 479035), (50, 383228), (100, 191614), (149, 128600), (200, 95807), (298, 64300), (596, 32150), (643, 29800), (745, 25720), (1192, 16075), (1286, 14900), (1490, 12860), (2572, 7450), (2980, 6430), (3215, 5960), (3725, 5144)]