98781380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{1361}}^1$

素因数の和:1580

約数の個数: 48

約数和(自身を含む): 219663360

約数和(自身を除く): 120881980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 191, 380, 382, 764, 955, 1361, 1910, 2722, 3629, 3820, 5444, 6805, 7258, 13610, 14516, 18145, 25859, 27220, 36290, 51718, 72580, 103436, 129295, 258590, 259951, 517180, 519902, 1039804, 1299755, 2599510, 4939069, 5199020, 9878138, 19756276, 24695345, 49390690, 98781380]

約数ペア:

[(1, 98781380), (2, 49390690), (4, 24695345), (5, 19756276), (10, 9878138), (19, 5199020), (20, 4939069), (38, 2599510), (76, 1299755), (95, 1039804), (190, 519902), (191, 517180), (380, 259951), (382, 258590), (764, 129295), (955, 103436), (1361, 72580), (1910, 51718), (2722, 36290), (3629, 27220), (3820, 25859), (5444, 18145), (6805, 14516), (7258, 13610)]