18378420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1951}}^1$

素因数の和:2120

約数の個数: 48

約数和(自身を含む): 51813888

約数和(自身を除く): 33435468

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1570, 1884, 1951, 2355, 3140, 3902, 4710, 5853, 7804, 9420, 9755, 11706, 19510, 23412, 29265, 39020, 58530, 117060, 306307, 612614, 918921, 1225228, 1531535, 1837842, 3063070, 3675684, 4594605, 6126140, 9189210, 18378420]

約数ペア:

[(1, 18378420), (2, 9189210), (3, 6126140), (4, 4594605), (5, 3675684), (6, 3063070), (10, 1837842), (12, 1531535), (15, 1225228), (20, 918921), (30, 612614), (60, 306307), (157, 117060), (314, 58530), (471, 39020), (628, 29265), (785, 23412), (942, 19510), (1570, 11706), (1884, 9755), (1951, 9420), (2355, 7804), (3140, 5853), (3902, 4710)]