2220190

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:241

約数の個数: 48

約数和(自身を含む): 4875552

約数和(自身を除く): 2655362

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 49, 70, 98, 115, 161, 197, 230, 245, 322, 394, 490, 805, 985, 1127, 1379, 1610, 1970, 2254, 2758, 4531, 5635, 6895, 9062, 9653, 11270, 13790, 19306, 22655, 31717, 45310, 48265, 63434, 96530, 158585, 222019, 317170, 444038, 1110095, 2220190]

約数ペア:

[(1, 2220190), (2, 1110095), (5, 444038), (7, 317170), (10, 222019), (14, 158585), (23, 96530), (35, 63434), (46, 48265), (49, 45310), (70, 31717), (98, 22655), (115, 19306), (161, 13790), (197, 11270), (230, 9653), (245, 9062), (322, 6895), (394, 5635), (490, 4531), (805, 2758), (985, 2254), (1127, 1970), (1379, 1610)]