20120804050

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{337}}^1\times {\mathrm{13417}}^1$

素因数の和:13855

約数の個数: 48

約数和(自身を含む): 37960327080

約数和(自身を除く): 17839523030

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 337, 445, 674, 890, 1685, 2225, 3370, 4450, 8425, 13417, 16850, 26834, 29993, 59986, 67085, 134170, 149965, 299930, 335425, 670850, 749825, 1194113, 1499650, 2388226, 4521529, 5970565, 9043058, 11941130, 22607645, 29852825, 45215290, 59705650, 113038225, 226076450, 402416081, 804832162, 2012080405, 4024160810, 10060402025, 20120804050]

約数ペア:

[(1, 20120804050), (2, 10060402025), (5, 4024160810), (10, 2012080405), (25, 804832162), (50, 402416081), (89, 226076450), (178, 113038225), (337, 59705650), (445, 45215290), (674, 29852825), (890, 22607645), (1685, 11941130), (2225, 9043058), (3370, 5970565), (4450, 4521529), (8425, 2388226), (13417, 1499650), (16850, 1194113), (26834, 749825), (29993, 670850), (59986, 335425), (67085, 299930), (134170, 149965)]