80621440

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5477}}^1$

素因数の和:5519

約数の個数: 64

約数和(自身を含む): 201152160

約数和(自身を除く): 120530720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1472, 1840, 2944, 3680, 5477, 7360, 10954, 14720, 21908, 27385, 43816, 54770, 87632, 109540, 125971, 175264, 219080, 251942, 350528, 438160, 503884, 629855, 701056, 876320, 1007768, 1259710, 1752640, 2015536, 2519420, 3505280, 4031072, 5038840, 8062144, 10077680, 16124288, 20155360, 40310720, 80621440]

約数ペア:

[(1, 80621440), (2, 40310720), (4, 20155360), (5, 16124288), (8, 10077680), (10, 8062144), (16, 5038840), (20, 4031072), (23, 3505280), (32, 2519420), (40, 2015536), (46, 1752640), (64, 1259710), (80, 1007768), (92, 876320), (115, 701056), (128, 629855), (160, 503884), (184, 438160), (230, 350528), (320, 251942), (368, 219080), (460, 175264), (640, 125971), (736, 109540), (920, 87632), (1472, 54770), (1840, 43816), (2944, 27385), (3680, 21908), (5477, 14720), (7360, 10954)]