17994780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{99971}}^1$

素因数の和:99986

約数の個数: 36

約数和(自身を含む): 54584712

約数和(自身を除く): 36589932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 99971, 199942, 299913, 399884, 499855, 599826, 899739, 999710, 1199652, 1499565, 1799478, 1999420, 2999130, 3598956, 4498695, 5998260, 8997390, 17994780]

約数ペア:

[(1, 17994780), (2, 8997390), (3, 5998260), (4, 4498695), (5, 3598956), (6, 2999130), (9, 1999420), (10, 1799478), (12, 1499565), (15, 1199652), (18, 999710), (20, 899739), (30, 599826), (36, 499855), (45, 399884), (60, 299913), (90, 199942), (180, 99971)]