127939840

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 356146560

約数和(自身を除く): 228206720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 109, 112, 128, 131, 140, 160, 218, 224, 256, 262, 280, 320, 436, 448, 524, 545, 560, 640, 655, 763, 872, 896, 917, 1048, 1090, 1120, 1280, 1310, 1526, 1744, 1792, 1834, 2096, 2180, 2240, 2620, 3052, 3488, 3668, 3815, 4192, 4360, 4480, 4585, 5240, 6104, 6976, 7336, 7630, 8384, 8720, 8960, 9170, 10480, 12208, 13952, 14279, 14672, 15260, 16768, 17440, 18340, 20960, 24416, 27904, 28558, 29344, 30520, 33536, 34880, 36680, 41920, 48832, 57116, 58688, 61040, 69760, 71395, 73360, 83840, 97664, 99953, 114232, 117376, 122080, 139520, 142790, 146720, 167680, 195328, 199906, 228464, 234752, 244160, 285580, 293440, 399812, 456928, 488320, 499765, 571160, 586880, 799624, 913856, 976640, 999530, 1142320, 1173760, 1599248, 1827712, 1999060, 2284640, 3198496, 3655424, 3998120, 4569280, 6396992, 7996240, 9138560, 12793984, 15992480, 18277120, 25587968, 31984960, 63969920, 127939840]

約数ペア:

[(1, 127939840), (2, 63969920), (4, 31984960), (5, 25587968), (7, 18277120), (8, 15992480), (10, 12793984), (14, 9138560), (16, 7996240), (20, 6396992), (28, 4569280), (32, 3998120), (35, 3655424), (40, 3198496), (56, 2284640), (64, 1999060), (70, 1827712), (80, 1599248), (109, 1173760), (112, 1142320), (128, 999530), (131, 976640), (140, 913856), (160, 799624), (218, 586880), (224, 571160), (256, 499765), (262, 488320), (280, 456928), (320, 399812), (436, 293440), (448, 285580), (524, 244160), (545, 234752), (560, 228464), (640, 199906), (655, 195328), (763, 167680), (872, 146720), (896, 142790), (917, 139520), (1048, 122080), (1090, 117376), (1120, 114232), (1280, 99953), (1310, 97664), (1526, 83840), (1744, 73360), (1792, 71395), (1834, 69760), (2096, 61040), (2180, 58688), (2240, 57116), (2620, 48832), (3052, 41920), (3488, 36680), (3668, 34880), (3815, 33536), (4192, 30520), (4360, 29344), (4480, 28558), (4585, 27904), (5240, 24416), (6104, 20960), (6976, 18340), (7336, 17440), (7630, 16768), (8384, 15260), (8720, 14672), (8960, 14279), (9170, 13952), (10480, 12208)]