190870420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{19841}}^1$

素因数の和:19900

約数の個数: 48

約数和(自身を含む): 443349648

約数和(自身を除く): 252479228

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 4810, 9620, 19841, 39682, 79364, 99205, 198410, 257933, 396820, 515866, 734117, 1031732, 1289665, 1468234, 2579330, 2936468, 3670585, 5158660, 7341170, 9543521, 14682340, 19087042, 38174084, 47717605, 95435210, 190870420]

約数ペア:

[(1, 190870420), (2, 95435210), (4, 47717605), (5, 38174084), (10, 19087042), (13, 14682340), (20, 9543521), (26, 7341170), (37, 5158660), (52, 3670585), (65, 2936468), (74, 2579330), (130, 1468234), (148, 1289665), (185, 1031732), (260, 734117), (370, 515866), (481, 396820), (740, 257933), (962, 198410), (1924, 99205), (2405, 79364), (4810, 39682), (9620, 19841)]