81383460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71389}}^1$

素因数の和:71420

約数の個数: 48

約数和(自身を含む): 239870400

約数和(自身を除く): 158486940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 71389, 142778, 214167, 285556, 356945, 428334, 713890, 856668, 1070835, 1356391, 1427780, 2141670, 2712782, 4069173, 4283340, 5425564, 6781955, 8138346, 13563910, 16276692, 20345865, 27127820, 40691730, 81383460]

約数ペア:

[(1, 81383460), (2, 40691730), (3, 27127820), (4, 20345865), (5, 16276692), (6, 13563910), (10, 8138346), (12, 6781955), (15, 5425564), (19, 4283340), (20, 4069173), (30, 2712782), (38, 2141670), (57, 1427780), (60, 1356391), (76, 1070835), (95, 856668), (114, 713890), (190, 428334), (228, 356945), (285, 285556), (380, 214167), (570, 142778), (1140, 71389)]