20489550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{5939}}^1$

素因数の和:5977

約数の個数: 48

約数和(自身を含む): 53032320

約数和(自身を除く): 32542770

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 25, 30, 46, 50, 69, 75, 115, 138, 150, 230, 345, 575, 690, 1150, 1725, 3450, 5939, 11878, 17817, 29695, 35634, 59390, 89085, 136597, 148475, 178170, 273194, 296950, 409791, 445425, 682985, 819582, 890850, 1365970, 2048955, 3414925, 4097910, 6829850, 10244775, 20489550]

約数ペア:

[(1, 20489550), (2, 10244775), (3, 6829850), (5, 4097910), (6, 3414925), (10, 2048955), (15, 1365970), (23, 890850), (25, 819582), (30, 682985), (46, 445425), (50, 409791), (69, 296950), (75, 273194), (115, 178170), (138, 148475), (150, 136597), (230, 89085), (345, 59390), (575, 35634), (690, 29695), (1150, 17817), (1725, 11878), (3450, 5939)]