30815080

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 72887040

約数和(自身を除く): 42071960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 47, 74, 94, 148, 185, 188, 235, 296, 370, 376, 443, 470, 740, 886, 940, 1480, 1739, 1772, 1880, 2215, 3478, 3544, 4430, 6956, 8695, 8860, 13912, 16391, 17390, 17720, 20821, 32782, 34780, 41642, 65564, 69560, 81955, 83284, 104105, 131128, 163910, 166568, 208210, 327820, 416420, 655640, 770377, 832840, 1540754, 3081508, 3851885, 6163016, 7703770, 15407540, 30815080]

約数ペア:

[(1, 30815080), (2, 15407540), (4, 7703770), (5, 6163016), (8, 3851885), (10, 3081508), (20, 1540754), (37, 832840), (40, 770377), (47, 655640), (74, 416420), (94, 327820), (148, 208210), (185, 166568), (188, 163910), (235, 131128), (296, 104105), (370, 83284), (376, 81955), (443, 69560), (470, 65564), (740, 41642), (886, 34780), (940, 32782), (1480, 20821), (1739, 17720), (1772, 17390), (1880, 16391), (2215, 13912), (3478, 8860), (3544, 8695), (4430, 6956)]