20132212820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{23719}}^1$

素因数の和:23833

約数の個数: 72

約数和(自身を含む): 44854709760

約数和(自身を除く): 24722496940

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 74, 124, 148, 155, 185, 310, 370, 620, 740, 1147, 1369, 2294, 2738, 4588, 5476, 5735, 6845, 11470, 13690, 22940, 23719, 27380, 42439, 47438, 84878, 94876, 118595, 169756, 212195, 237190, 424390, 474380, 735289, 848780, 877603, 1470578, 1755206, 2941156, 3510412, 3676445, 4388015, 7352890, 8776030, 14705780, 17552060, 27205693, 32471311, 54411386, 64942622, 108822772, 129885244, 136028465, 162356555, 272056930, 324713110, 544113860, 649426220, 1006610641, 2013221282, 4026442564, 5033053205, 10066106410, 20132212820]

約数ペア:

[(1, 20132212820), (2, 10066106410), (4, 5033053205), (5, 4026442564), (10, 2013221282), (20, 1006610641), (31, 649426220), (37, 544113860), (62, 324713110), (74, 272056930), (124, 162356555), (148, 136028465), (155, 129885244), (185, 108822772), (310, 64942622), (370, 54411386), (620, 32471311), (740, 27205693), (1147, 17552060), (1369, 14705780), (2294, 8776030), (2738, 7352890), (4588, 4388015), (5476, 3676445), (5735, 3510412), (6845, 2941156), (11470, 1755206), (13690, 1470578), (22940, 877603), (23719, 848780), (27380, 735289), (42439, 474380), (47438, 424390), (84878, 237190), (94876, 212195), (118595, 169756)]