90077320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{72643}}^1$

素因数の和:72685

約数の個数: 32

約数和(自身を含む): 209214720

約数和(自身を除く): 119137400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 72643, 145286, 290572, 363215, 581144, 726430, 1452860, 2251933, 2905720, 4503866, 9007732, 11259665, 18015464, 22519330, 45038660, 90077320]

約数ペア:

[(1, 90077320), (2, 45038660), (4, 22519330), (5, 18015464), (8, 11259665), (10, 9007732), (20, 4503866), (31, 2905720), (40, 2251933), (62, 1452860), (124, 726430), (155, 581144), (248, 363215), (310, 290572), (620, 145286), (1240, 72643)]