289479540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{689237}}^1$

素因数の和:689256

約数の個数: 48

約数和(自身を含む): 926335872

約数和(自身を除く): 636856332

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 689237, 1378474, 2067711, 2756948, 3446185, 4135422, 4824659, 6892370, 8270844, 9649318, 10338555, 13784740, 14473977, 19298636, 20677110, 24123295, 28947954, 41354220, 48246590, 57895908, 72369885, 96493180, 144739770, 289479540]

約数ペア:

[(1, 289479540), (2, 144739770), (3, 96493180), (4, 72369885), (5, 57895908), (6, 48246590), (7, 41354220), (10, 28947954), (12, 24123295), (14, 20677110), (15, 19298636), (20, 14473977), (21, 13784740), (28, 10338555), (30, 9649318), (35, 8270844), (42, 6892370), (60, 4824659), (70, 4135422), (84, 3446185), (105, 2756948), (140, 2067711), (210, 1378474), (420, 689237)]