64557200

素因数分解:

$2^4\times 5^2\times {\mathrm{251}}^1\times {\mathrm{643}}^1$

素因数の和:912

約数の個数: 60

約数和(自身を含む): 155958768

約数和(自身を除く): 91401568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 251, 400, 502, 643, 1004, 1255, 1286, 2008, 2510, 2572, 3215, 4016, 5020, 5144, 6275, 6430, 10040, 10288, 12550, 12860, 16075, 20080, 25100, 25720, 32150, 50200, 51440, 64300, 100400, 128600, 161393, 257200, 322786, 645572, 806965, 1291144, 1613930, 2582288, 3227860, 4034825, 6455720, 8069650, 12911440, 16139300, 32278600, 64557200]

約数ペア:

[(1, 64557200), (2, 32278600), (4, 16139300), (5, 12911440), (8, 8069650), (10, 6455720), (16, 4034825), (20, 3227860), (25, 2582288), (40, 1613930), (50, 1291144), (80, 806965), (100, 645572), (200, 322786), (251, 257200), (400, 161393), (502, 128600), (643, 100400), (1004, 64300), (1255, 51440), (1286, 50200), (2008, 32150), (2510, 25720), (2572, 25100), (3215, 20080), (4016, 16075), (5020, 12860), (5144, 12550), (6275, 10288), (6430, 10040)]