2140450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:151

約数の個数: 48

約数和(自身を含む): 4452840

約数和(自身を除く): 2312390

約数列:

[1, 2, 5, 10, 13, 25, 26, 37, 50, 65, 74, 89, 130, 178, 185, 325, 370, 445, 481, 650, 890, 925, 962, 1157, 1850, 2225, 2314, 2405, 3293, 4450, 4810, 5785, 6586, 11570, 12025, 16465, 24050, 28925, 32930, 42809, 57850, 82325, 85618, 164650, 214045, 428090, 1070225, 2140450]

約数ペア:

[(1, 2140450), (2, 1070225), (5, 428090), (10, 214045), (13, 164650), (25, 85618), (26, 82325), (37, 57850), (50, 42809), (65, 32930), (74, 28925), (89, 24050), (130, 16465), (178, 12025), (185, 11570), (325, 6586), (370, 5785), (445, 4810), (481, 4450), (650, 3293), (890, 2405), (925, 2314), (962, 2225), (1157, 1850)]