20942760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{877}}^1$

素因数の和:1090

約数の個数: 64

約数和(自身を含む): 63216000

約数和(自身を除く): 42273240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 199, 398, 597, 796, 877, 995, 1194, 1592, 1754, 1990, 2388, 2631, 2985, 3508, 3980, 4385, 4776, 5262, 5970, 7016, 7960, 8770, 10524, 11940, 13155, 17540, 21048, 23880, 26310, 35080, 52620, 105240, 174523, 349046, 523569, 698092, 872615, 1047138, 1396184, 1745230, 2094276, 2617845, 3490460, 4188552, 5235690, 6980920, 10471380, 20942760]

約数ペア:

[(1, 20942760), (2, 10471380), (3, 6980920), (4, 5235690), (5, 4188552), (6, 3490460), (8, 2617845), (10, 2094276), (12, 1745230), (15, 1396184), (20, 1047138), (24, 872615), (30, 698092), (40, 523569), (60, 349046), (120, 174523), (199, 105240), (398, 52620), (597, 35080), (796, 26310), (877, 23880), (995, 21048), (1194, 17540), (1592, 13155), (1754, 11940), (1990, 10524), (2388, 8770), (2631, 7960), (2985, 7016), (3508, 5970), (3980, 5262), (4385, 4776)]