19003420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1163}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 43021440

約数和(自身を除く): 24018020

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1163, 1634, 2326, 3268, 4085, 4652, 5815, 8170, 11630, 16340, 22097, 23260, 44194, 50009, 88388, 100018, 110485, 200036, 220970, 250045, 441940, 500090, 950171, 1000180, 1900342, 3800684, 4750855, 9501710, 19003420]

約数ペア:

[(1, 19003420), (2, 9501710), (4, 4750855), (5, 3800684), (10, 1900342), (19, 1000180), (20, 950171), (38, 500090), (43, 441940), (76, 250045), (86, 220970), (95, 200036), (172, 110485), (190, 100018), (215, 88388), (380, 50009), (430, 44194), (817, 23260), (860, 22097), (1163, 16340), (1634, 11630), (2326, 8170), (3268, 5815), (4085, 4652)]