2012315720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{523}}^1\times {\mathrm{2237}}^1$

素因数の和:2814

約数の個数: 64

約数和(自身を含む): 4643939520

約数和(自身を除く): 2631623800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 523, 860, 1046, 1720, 2092, 2237, 2615, 4184, 4474, 5230, 8948, 10460, 11185, 17896, 20920, 22370, 22489, 44740, 44978, 89480, 89956, 96191, 112445, 179912, 192382, 224890, 384764, 449780, 480955, 769528, 899560, 961910, 1169951, 1923820, 2339902, 3847640, 4679804, 5849755, 9359608, 11699510, 23399020, 46798040, 50307893, 100615786, 201231572, 251539465, 402463144, 503078930, 1006157860, 2012315720]

約数ペア:

[(1, 2012315720), (2, 1006157860), (4, 503078930), (5, 402463144), (8, 251539465), (10, 201231572), (20, 100615786), (40, 50307893), (43, 46798040), (86, 23399020), (172, 11699510), (215, 9359608), (344, 5849755), (430, 4679804), (523, 3847640), (860, 2339902), (1046, 1923820), (1720, 1169951), (2092, 961910), (2237, 899560), (2615, 769528), (4184, 480955), (4474, 449780), (5230, 384764), (8948, 224890), (10460, 192382), (11185, 179912), (17896, 112445), (20920, 96191), (22370, 89956), (22489, 89480), (44740, 44978)]