18901530

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{2039}}^1$

素因数の和:2155

約数の個数: 48

約数和(自身を含む): 49645440

約数和(自身を除く): 30743910

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 103, 206, 309, 515, 618, 927, 1030, 1545, 1854, 2039, 3090, 4078, 4635, 6117, 9270, 10195, 12234, 18351, 20390, 30585, 36702, 61170, 91755, 183510, 210017, 420034, 630051, 1050085, 1260102, 1890153, 2100170, 3150255, 3780306, 6300510, 9450765, 18901530]

約数ペア:

[(1, 18901530), (2, 9450765), (3, 6300510), (5, 3780306), (6, 3150255), (9, 2100170), (10, 1890153), (15, 1260102), (18, 1050085), (30, 630051), (45, 420034), (90, 210017), (103, 183510), (206, 91755), (309, 61170), (515, 36702), (618, 30585), (927, 20390), (1030, 18351), (1545, 12234), (1854, 10195), (2039, 9270), (3090, 6117), (4078, 4635)]