213780420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{169667}}^1$

素因数の和:169689

約数の個数: 72

約数和(自身を含む): 741109824

約数和(自身を除く): 527329404

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 169667, 339334, 509001, 678668, 848335, 1018002, 1187669, 1527003, 1696670, 2036004, 2375338, 2545005, 3054006, 3393340, 3563007, 4750676, 5090010, 5938345, 6108012, 7126014, 7635015, 10180020, 10689021, 11876690, 14252028, 15270030, 17815035, 21378042, 23753380, 30540060, 35630070, 42756084, 53445105, 71260140, 106890210, 213780420]

約数ペア:

[(1, 213780420), (2, 106890210), (3, 71260140), (4, 53445105), (5, 42756084), (6, 35630070), (7, 30540060), (9, 23753380), (10, 21378042), (12, 17815035), (14, 15270030), (15, 14252028), (18, 11876690), (20, 10689021), (21, 10180020), (28, 7635015), (30, 7126014), (35, 6108012), (36, 5938345), (42, 5090010), (45, 4750676), (60, 3563007), (63, 3393340), (70, 3054006), (84, 2545005), (90, 2375338), (105, 2036004), (126, 1696670), (140, 1527003), (180, 1187669), (210, 1018002), (252, 848335), (315, 678668), (420, 509001), (630, 339334), (1260, 169667)]