2161140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 6115200

約数和(自身を除く): 3954060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 181, 199, 362, 398, 543, 597, 724, 796, 905, 995, 1086, 1194, 1810, 1990, 2172, 2388, 2715, 2985, 3620, 3980, 5430, 5970, 10860, 11940, 36019, 72038, 108057, 144076, 180095, 216114, 360190, 432228, 540285, 720380, 1080570, 2161140]

約数ペア:

[(1, 2161140), (2, 1080570), (3, 720380), (4, 540285), (5, 432228), (6, 360190), (10, 216114), (12, 180095), (15, 144076), (20, 108057), (30, 72038), (60, 36019), (181, 11940), (199, 10860), (362, 5970), (398, 5430), (543, 3980), (597, 3620), (724, 2985), (796, 2715), (905, 2388), (995, 2172), (1086, 1990), (1194, 1810)]