402883880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{205553}}^1$

素因数の和:205578

約数の個数: 48

約数和(自身を含む): 1054492020

約数和(自身を除く): 651608140

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 205553, 411106, 822212, 1027765, 1438871, 1644424, 2055530, 2877742, 4111060, 5755484, 7194355, 8222120, 10072097, 11510968, 14388710, 20144194, 28777420, 40288388, 50360485, 57554840, 80576776, 100720970, 201441940, 402883880]

約数ペア:

[(1, 402883880), (2, 201441940), (4, 100720970), (5, 80576776), (7, 57554840), (8, 50360485), (10, 40288388), (14, 28777420), (20, 20144194), (28, 14388710), (35, 11510968), (40, 10072097), (49, 8222120), (56, 7194355), (70, 5755484), (98, 4111060), (140, 2877742), (196, 2055530), (245, 1644424), (280, 1438871), (392, 1027765), (490, 822212), (980, 411106), (1960, 205553)]