209280680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{32497}}^1$

素因数の和:32538

約数の個数: 64

約数和(自身を含む): 561565440

約数和(自身を除く): 352284760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 32497, 64994, 129988, 162485, 227479, 259976, 324970, 454958, 649940, 747431, 909916, 1137395, 1299880, 1494862, 1819832, 2274790, 2989724, 3737155, 4549580, 5232017, 5979448, 7474310, 9099160, 10464034, 14948620, 20928068, 26160085, 29897240, 41856136, 52320170, 104640340, 209280680]

約数ペア:

[(1, 209280680), (2, 104640340), (4, 52320170), (5, 41856136), (7, 29897240), (8, 26160085), (10, 20928068), (14, 14948620), (20, 10464034), (23, 9099160), (28, 7474310), (35, 5979448), (40, 5232017), (46, 4549580), (56, 3737155), (70, 2989724), (92, 2274790), (115, 1819832), (140, 1494862), (161, 1299880), (184, 1137395), (230, 909916), (280, 747431), (322, 649940), (460, 454958), (644, 324970), (805, 259976), (920, 227479), (1288, 162485), (1610, 129988), (3220, 64994), (6440, 32497)]