18961400

素因数分解:

$2^3\times 5^2\times {\mathrm{113}}^1\times {\mathrm{839}}^1$

素因数の和:968

約数の個数: 48

約数和(自身を含む): 44528400

約数和(自身を除く): 25567000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 113, 200, 226, 452, 565, 839, 904, 1130, 1678, 2260, 2825, 3356, 4195, 4520, 5650, 6712, 8390, 11300, 16780, 20975, 22600, 33560, 41950, 83900, 94807, 167800, 189614, 379228, 474035, 758456, 948070, 1896140, 2370175, 3792280, 4740350, 9480700, 18961400]

約数ペア:

[(1, 18961400), (2, 9480700), (4, 4740350), (5, 3792280), (8, 2370175), (10, 1896140), (20, 948070), (25, 758456), (40, 474035), (50, 379228), (100, 189614), (113, 167800), (200, 94807), (226, 83900), (452, 41950), (565, 33560), (839, 22600), (904, 20975), (1130, 16780), (1678, 11300), (2260, 8390), (2825, 6712), (3356, 5650), (4195, 4520)]