18733860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{523}}^1$

素因数の和:737

約数の個数: 72

約数和(自身を含む): 57220800

約数和(自身を除く): 38486940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 398, 523, 597, 796, 995, 1046, 1194, 1569, 1791, 1990, 2092, 2388, 2615, 2985, 3138, 3582, 3980, 4707, 5230, 5970, 6276, 7164, 7845, 8955, 9414, 10460, 11940, 15690, 17910, 18828, 23535, 31380, 35820, 47070, 94140, 104077, 208154, 312231, 416308, 520385, 624462, 936693, 1040770, 1248924, 1561155, 1873386, 2081540, 3122310, 3746772, 4683465, 6244620, 9366930, 18733860]

約数ペア:

[(1, 18733860), (2, 9366930), (3, 6244620), (4, 4683465), (5, 3746772), (6, 3122310), (9, 2081540), (10, 1873386), (12, 1561155), (15, 1248924), (18, 1040770), (20, 936693), (30, 624462), (36, 520385), (45, 416308), (60, 312231), (90, 208154), (180, 104077), (199, 94140), (398, 47070), (523, 35820), (597, 31380), (796, 23535), (995, 18828), (1046, 17910), (1194, 15690), (1569, 11940), (1791, 10460), (1990, 9414), (2092, 8955), (2388, 7845), (2615, 7164), (2985, 6276), (3138, 5970), (3582, 5230), (3980, 4707)]