209320920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{581447}}^1$

素因数の和:581464

約数の個数: 48

約数和(自身を含む): 680294160

約数和(自身を除く): 470973240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 581447, 1162894, 1744341, 2325788, 2907235, 3488682, 4651576, 5233023, 5814470, 6977364, 8721705, 10466046, 11628940, 13954728, 17443410, 20932092, 23257880, 26165115, 34886820, 41864184, 52330230, 69773640, 104660460, 209320920]

約数ペア:

[(1, 209320920), (2, 104660460), (3, 69773640), (4, 52330230), (5, 41864184), (6, 34886820), (8, 26165115), (9, 23257880), (10, 20932092), (12, 17443410), (15, 13954728), (18, 11628940), (20, 10466046), (24, 8721705), (30, 6977364), (36, 5814470), (40, 5233023), (45, 4651576), (60, 3488682), (72, 2907235), (90, 2325788), (120, 1744341), (180, 1162894), (360, 581447)]