18203580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{4397}}^1$

素因数の和:4435

約数の個数: 72

約数和(自身を含む): 57631392

約数和(自身を除く): 39427812

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 4397, 8794, 13191, 17588, 21985, 26382, 39573, 43970, 52764, 65955, 79146, 87940, 101131, 131910, 158292, 197865, 202262, 263820, 303393, 395730, 404524, 505655, 606786, 791460, 910179, 1011310, 1213572, 1516965, 1820358, 2022620, 3033930, 3640716, 4550895, 6067860, 9101790, 18203580]

約数ペア:

[(1, 18203580), (2, 9101790), (3, 6067860), (4, 4550895), (5, 3640716), (6, 3033930), (9, 2022620), (10, 1820358), (12, 1516965), (15, 1213572), (18, 1011310), (20, 910179), (23, 791460), (30, 606786), (36, 505655), (45, 404524), (46, 395730), (60, 303393), (69, 263820), (90, 202262), (92, 197865), (115, 158292), (138, 131910), (180, 101131), (207, 87940), (230, 79146), (276, 65955), (345, 52764), (414, 43970), (460, 39573), (690, 26382), (828, 21985), (1035, 17588), (1380, 13191), (2070, 8794), (4140, 4397)]