18735700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 43872192

約数和(自身を除く): 25136492

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 103, 107, 170, 206, 214, 340, 412, 425, 428, 515, 535, 850, 1030, 1070, 1700, 1751, 1819, 2060, 2140, 2575, 2675, 3502, 3638, 5150, 5350, 7004, 7276, 8755, 9095, 10300, 10700, 11021, 17510, 18190, 22042, 35020, 36380, 43775, 44084, 45475, 55105, 87550, 90950, 110210, 175100, 181900, 187357, 220420, 275525, 374714, 551050, 749428, 936785, 1102100, 1873570, 3747140, 4683925, 9367850, 18735700]

約数ペア:

[(1, 18735700), (2, 9367850), (4, 4683925), (5, 3747140), (10, 1873570), (17, 1102100), (20, 936785), (25, 749428), (34, 551050), (50, 374714), (68, 275525), (85, 220420), (100, 187357), (103, 181900), (107, 175100), (170, 110210), (206, 90950), (214, 87550), (340, 55105), (412, 45475), (425, 44084), (428, 43775), (515, 36380), (535, 35020), (850, 22042), (1030, 18190), (1070, 17510), (1700, 11021), (1751, 10700), (1819, 10300), (2060, 9095), (2140, 8755), (2575, 7276), (2675, 7004), (3502, 5350), (3638, 5150)]