2661140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 6048000

約数和(自身を除く): 3386860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 149, 188, 190, 235, 298, 380, 470, 596, 745, 893, 940, 1490, 1786, 2831, 2980, 3572, 4465, 5662, 7003, 8930, 11324, 14006, 14155, 17860, 28012, 28310, 35015, 56620, 70030, 133057, 140060, 266114, 532228, 665285, 1330570, 2661140]

約数ペア:

[(1, 2661140), (2, 1330570), (4, 665285), (5, 532228), (10, 266114), (19, 140060), (20, 133057), (38, 70030), (47, 56620), (76, 35015), (94, 28310), (95, 28012), (149, 17860), (188, 14155), (190, 14006), (235, 11324), (298, 8930), (380, 7003), (470, 5662), (596, 4465), (745, 3572), (893, 2980), (940, 2831), (1490, 1786)]