155440

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:109

約数の個数: 40

約数和(自身を含む): 379440

約数和(自身を除く): 224000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 67, 80, 116, 134, 145, 232, 268, 290, 335, 464, 536, 580, 670, 1072, 1160, 1340, 1943, 2320, 2680, 3886, 5360, 7772, 9715, 15544, 19430, 31088, 38860, 77720, 155440]

約数ペア:

[(1, 155440), (2, 77720), (4, 38860), (5, 31088), (8, 19430), (10, 15544), (16, 9715), (20, 7772), (29, 5360), (40, 3886), (58, 2680), (67, 2320), (80, 1943), (116, 1340), (134, 1160), (145, 1072), (232, 670), (268, 580), (290, 536), (335, 464)]