681226540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{593}}^1\times {\mathrm{809}}^1$

素因数の和:1482

約数の個数: 48

約数和(自身を含む): 1454967360

約数和(自身を除く): 773740820

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 593, 710, 809, 1186, 1420, 1618, 2372, 2965, 3236, 4045, 5930, 8090, 11860, 16180, 42103, 57439, 84206, 114878, 168412, 210515, 229756, 287195, 421030, 479737, 574390, 842060, 959474, 1148780, 1918948, 2398685, 4797370, 9594740, 34061327, 68122654, 136245308, 170306635, 340613270, 681226540]

約数ペア:

[(1, 681226540), (2, 340613270), (4, 170306635), (5, 136245308), (10, 68122654), (20, 34061327), (71, 9594740), (142, 4797370), (284, 2398685), (355, 1918948), (593, 1148780), (710, 959474), (809, 842060), (1186, 574390), (1420, 479737), (1618, 421030), (2372, 287195), (2965, 229756), (3236, 210515), (4045, 168412), (5930, 114878), (8090, 84206), (11860, 57439), (16180, 42103)]