18030100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{443}}^1$

素因数の和:505

約数の個数: 72

約数和(自身を含む): 43934688

約数和(自身を除く): 25904588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 37, 44, 50, 55, 74, 100, 110, 148, 185, 220, 275, 370, 407, 443, 550, 740, 814, 886, 925, 1100, 1628, 1772, 1850, 2035, 2215, 3700, 4070, 4430, 4873, 8140, 8860, 9746, 10175, 11075, 16391, 19492, 20350, 22150, 24365, 32782, 40700, 44300, 48730, 65564, 81955, 97460, 121825, 163910, 180301, 243650, 327820, 360602, 409775, 487300, 721204, 819550, 901505, 1639100, 1803010, 3606020, 4507525, 9015050, 18030100]

約数ペア:

[(1, 18030100), (2, 9015050), (4, 4507525), (5, 3606020), (10, 1803010), (11, 1639100), (20, 901505), (22, 819550), (25, 721204), (37, 487300), (44, 409775), (50, 360602), (55, 327820), (74, 243650), (100, 180301), (110, 163910), (148, 121825), (185, 97460), (220, 81955), (275, 65564), (370, 48730), (407, 44300), (443, 40700), (550, 32782), (740, 24365), (814, 22150), (886, 20350), (925, 19492), (1100, 16391), (1628, 11075), (1772, 10175), (1850, 9746), (2035, 8860), (2215, 8140), (3700, 4873), (4070, 4430)]