6421940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{6553}}^1$

素因数の和:6576

約数の個数: 36

約数和(自身を含む): 15690276

約数和(自身を除く): 9268336

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 6553, 13106, 26212, 32765, 45871, 65530, 91742, 131060, 183484, 229355, 321097, 458710, 642194, 917420, 1284388, 1605485, 3210970, 6421940]

約数ペア:

[(1, 6421940), (2, 3210970), (4, 1605485), (5, 1284388), (7, 917420), (10, 642194), (14, 458710), (20, 321097), (28, 229355), (35, 183484), (49, 131060), (70, 91742), (98, 65530), (140, 45871), (196, 32765), (245, 26212), (490, 13106), (980, 6553)]