19345820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2011}}^1$

素因数の和:2070

約数の個数: 48

約数和(自身を含む): 44956128

約数和(自身を除く): 25610308

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2011, 2405, 4022, 4810, 8044, 9620, 10055, 20110, 26143, 40220, 52286, 74407, 104572, 130715, 148814, 261430, 297628, 372035, 522860, 744070, 967291, 1488140, 1934582, 3869164, 4836455, 9672910, 19345820]

約数ペア:

[(1, 19345820), (2, 9672910), (4, 4836455), (5, 3869164), (10, 1934582), (13, 1488140), (20, 967291), (26, 744070), (37, 522860), (52, 372035), (65, 297628), (74, 261430), (130, 148814), (148, 130715), (185, 104572), (260, 74407), (370, 52286), (481, 40220), (740, 26143), (962, 20110), (1924, 10055), (2011, 9620), (2405, 8044), (4022, 4810)]