18998850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9743}}^1$

素因数の和:9771

約数の個数: 48

約数和(自身を含む): 50746752

約数和(自身を除く): 31747902

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 195, 325, 390, 650, 975, 1950, 9743, 19486, 29229, 48715, 58458, 97430, 126659, 146145, 243575, 253318, 292290, 379977, 487150, 633295, 730725, 759954, 1266590, 1461450, 1899885, 3166475, 3799770, 6332950, 9499425, 18998850]

約数ペア:

[(1, 18998850), (2, 9499425), (3, 6332950), (5, 3799770), (6, 3166475), (10, 1899885), (13, 1461450), (15, 1266590), (25, 759954), (26, 730725), (30, 633295), (39, 487150), (50, 379977), (65, 292290), (75, 253318), (78, 243575), (130, 146145), (150, 126659), (195, 97430), (325, 58458), (390, 48715), (650, 29229), (975, 19486), (1950, 9743)]