17902820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1861}}^1$

素因数の和:1920

約数の個数: 48

約数和(自身を含む): 41604528

約数和(自身を除く): 23701708

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1861, 1924, 2405, 3722, 4810, 7444, 9305, 9620, 18610, 24193, 37220, 48386, 68857, 96772, 120965, 137714, 241930, 275428, 344285, 483860, 688570, 895141, 1377140, 1790282, 3580564, 4475705, 8951410, 17902820]

約数ペア:

[(1, 17902820), (2, 8951410), (4, 4475705), (5, 3580564), (10, 1790282), (13, 1377140), (20, 895141), (26, 688570), (37, 483860), (52, 344285), (65, 275428), (74, 241930), (130, 137714), (148, 120965), (185, 96772), (260, 68857), (370, 48386), (481, 37220), (740, 24193), (962, 18610), (1861, 9620), (1924, 9305), (2405, 7444), (3722, 4810)]