1285050

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{659}}^1$

素因数の和:687

約数の個数: 48

約数和(自身を含む): 3437280

約数和(自身を除く): 2152230

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, 659, 975, 1318, 1950, 1977, 3295, 3954, 6590, 8567, 9885, 16475, 17134, 19770, 25701, 32950, 42835, 49425, 51402, 85670, 98850, 128505, 214175, 257010, 428350, 642525, 1285050]

約数ペア:

[(1, 1285050), (2, 642525), (3, 428350), (5, 257010), (6, 214175), (10, 128505), (13, 98850), (15, 85670), (25, 51402), (26, 49425), (30, 42835), (39, 32950), (50, 25701), (65, 19770), (75, 17134), (78, 16475), (130, 9885), (150, 8567), (195, 6590), (325, 3954), (390, 3295), (650, 1977), (659, 1950), (975, 1318)]