7996240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:260

約数の個数: 80

約数和(自身を含む): 21605760

約数和(自身を除く): 13609520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 131, 140, 218, 262, 280, 436, 524, 545, 560, 655, 763, 872, 917, 1048, 1090, 1310, 1526, 1744, 1834, 2096, 2180, 2620, 3052, 3668, 3815, 4360, 4585, 5240, 6104, 7336, 7630, 8720, 9170, 10480, 12208, 14279, 14672, 15260, 18340, 28558, 30520, 36680, 57116, 61040, 71395, 73360, 99953, 114232, 142790, 199906, 228464, 285580, 399812, 499765, 571160, 799624, 999530, 1142320, 1599248, 1999060, 3998120, 7996240]

約数ペア:

[(1, 7996240), (2, 3998120), (4, 1999060), (5, 1599248), (7, 1142320), (8, 999530), (10, 799624), (14, 571160), (16, 499765), (20, 399812), (28, 285580), (35, 228464), (40, 199906), (56, 142790), (70, 114232), (80, 99953), (109, 73360), (112, 71395), (131, 61040), (140, 57116), (218, 36680), (262, 30520), (280, 28558), (436, 18340), (524, 15260), (545, 14672), (560, 14279), (655, 12208), (763, 10480), (872, 9170), (917, 8720), (1048, 7630), (1090, 7336), (1310, 6104), (1526, 5240), (1744, 4585), (1834, 4360), (2096, 3815), (2180, 3668), (2620, 3052)]