20018850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{3607}}^1$

素因数の和:3659

約数の個数: 48

約数和(自身を含む): 51002688

約数和(自身を除く): 30983838

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 37, 50, 74, 75, 111, 150, 185, 222, 370, 555, 925, 1110, 1850, 2775, 3607, 5550, 7214, 10821, 18035, 21642, 36070, 54105, 90175, 108210, 133459, 180350, 266918, 270525, 400377, 541050, 667295, 800754, 1334590, 2001885, 3336475, 4003770, 6672950, 10009425, 20018850]

約数ペア:

[(1, 20018850), (2, 10009425), (3, 6672950), (5, 4003770), (6, 3336475), (10, 2001885), (15, 1334590), (25, 800754), (30, 667295), (37, 541050), (50, 400377), (74, 270525), (75, 266918), (111, 180350), (150, 133459), (185, 108210), (222, 90175), (370, 54105), (555, 36070), (925, 21642), (1110, 18035), (1850, 10821), (2775, 7214), (3607, 5550)]