2401220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 5443200

約数和(自身を除く): 3041980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 89, 95, 142, 178, 190, 284, 355, 356, 380, 445, 710, 890, 1349, 1420, 1691, 1780, 2698, 3382, 5396, 6319, 6745, 6764, 8455, 12638, 13490, 16910, 25276, 26980, 31595, 33820, 63190, 120061, 126380, 240122, 480244, 600305, 1200610, 2401220]

約数ペア:

[(1, 2401220), (2, 1200610), (4, 600305), (5, 480244), (10, 240122), (19, 126380), (20, 120061), (38, 63190), (71, 33820), (76, 31595), (89, 26980), (95, 25276), (142, 16910), (178, 13490), (190, 12638), (284, 8455), (355, 6764), (356, 6745), (380, 6319), (445, 5396), (710, 3382), (890, 2698), (1349, 1780), (1420, 1691)]