18365320

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12409}}^1$

素因数の和:12457

約数の個数: 32

約数和(自身を含む): 42442200

約数和(自身を除く): 24076880

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 12409, 24818, 49636, 62045, 99272, 124090, 248180, 459133, 496360, 918266, 1836532, 2295665, 3673064, 4591330, 9182660, 18365320]

約数ペア:

[(1, 18365320), (2, 9182660), (4, 4591330), (5, 3673064), (8, 2295665), (10, 1836532), (20, 918266), (37, 496360), (40, 459133), (74, 248180), (148, 124090), (185, 99272), (296, 62045), (370, 49636), (740, 24818), (1480, 12409)]