18277120

素因数分解:

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

素因数の和:261

約数の個数: 72

約数和(自身を含む): 44518320

約数和(自身を除く): 26241200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 131, 160, 218, 256, 262, 320, 436, 524, 545, 640, 655, 872, 1048, 1090, 1280, 1310, 1744, 2096, 2180, 2620, 3488, 4192, 4360, 5240, 6976, 8384, 8720, 10480, 13952, 14279, 16768, 17440, 20960, 27904, 28558, 33536, 34880, 41920, 57116, 69760, 71395, 83840, 114232, 139520, 142790, 167680, 228464, 285580, 456928, 571160, 913856, 1142320, 1827712, 2284640, 3655424, 4569280, 9138560, 18277120]

約数ペア:

[(1, 18277120), (2, 9138560), (4, 4569280), (5, 3655424), (8, 2284640), (10, 1827712), (16, 1142320), (20, 913856), (32, 571160), (40, 456928), (64, 285580), (80, 228464), (109, 167680), (128, 142790), (131, 139520), (160, 114232), (218, 83840), (256, 71395), (262, 69760), (320, 57116), (436, 41920), (524, 34880), (545, 33536), (640, 28558), (655, 27904), (872, 20960), (1048, 17440), (1090, 16768), (1280, 14279), (1310, 13952), (1744, 10480), (2096, 8720), (2180, 8384), (2620, 6976), (3488, 5240), (4192, 4360)]