20199082180

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{449}}^1\times {\mathrm{60793}}^1$

素因数の和:61288

約数の個数: 48

約数和(自身を含む): 43662250800

約数和(自身を除く): 23463168620

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 449, 740, 898, 1796, 2245, 4490, 8980, 16613, 33226, 60793, 66452, 83065, 121586, 166130, 243172, 303965, 332260, 607930, 1215860, 2249341, 4498682, 8997364, 11246705, 22493410, 27296057, 44986820, 54592114, 109184228, 136480285, 272960570, 545921140, 1009954109, 2019908218, 4039816436, 5049770545, 10099541090, 20199082180]

約数ペア:

[(1, 20199082180), (2, 10099541090), (4, 5049770545), (5, 4039816436), (10, 2019908218), (20, 1009954109), (37, 545921140), (74, 272960570), (148, 136480285), (185, 109184228), (370, 54592114), (449, 44986820), (740, 27296057), (898, 22493410), (1796, 11246705), (2245, 8997364), (4490, 4498682), (8980, 2249341), (16613, 1215860), (33226, 607930), (60793, 332260), (66452, 303965), (83065, 243172), (121586, 166130)]