81127900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5039}}^1$

素因数の和:5083

約数の個数: 72

約数和(自身を含む): 209986560

約数和(自身を除く): 128858660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 140, 161, 175, 230, 322, 350, 460, 575, 644, 700, 805, 1150, 1610, 2300, 3220, 4025, 5039, 8050, 10078, 16100, 20156, 25195, 35273, 50390, 70546, 100780, 115897, 125975, 141092, 176365, 231794, 251950, 352730, 463588, 503900, 579485, 705460, 811279, 881825, 1158970, 1622558, 1763650, 2317940, 2897425, 3245116, 3527300, 4056395, 5794850, 8112790, 11589700, 16225580, 20281975, 40563950, 81127900]

約数ペア:

[(1, 81127900), (2, 40563950), (4, 20281975), (5, 16225580), (7, 11589700), (10, 8112790), (14, 5794850), (20, 4056395), (23, 3527300), (25, 3245116), (28, 2897425), (35, 2317940), (46, 1763650), (50, 1622558), (70, 1158970), (92, 881825), (100, 811279), (115, 705460), (140, 579485), (161, 503900), (175, 463588), (230, 352730), (322, 251950), (350, 231794), (460, 176365), (575, 141092), (644, 125975), (700, 115897), (805, 100780), (1150, 70546), (1610, 50390), (2300, 35273), (3220, 25195), (4025, 20156), (5039, 16100), (8050, 10078)]