40480960

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:330

約数の個数: 112

約数和(自身を含む): 107021376

約数和(自身を除く): 66540416

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 52, 64, 65, 74, 80, 104, 130, 148, 160, 185, 208, 260, 263, 296, 320, 370, 416, 481, 520, 526, 592, 740, 832, 962, 1040, 1052, 1184, 1315, 1480, 1924, 2080, 2104, 2368, 2405, 2630, 2960, 3419, 3848, 4160, 4208, 4810, 5260, 5920, 6838, 7696, 8416, 9620, 9731, 10520, 11840, 13676, 15392, 16832, 17095, 19240, 19462, 21040, 27352, 30784, 34190, 38480, 38924, 42080, 48655, 54704, 68380, 76960, 77848, 84160, 97310, 109408, 126503, 136760, 153920, 155696, 194620, 218816, 253006, 273520, 311392, 389240, 506012, 547040, 622784, 632515, 778480, 1012024, 1094080, 1265030, 1556960, 2024048, 2530060, 3113920, 4048096, 5060120, 8096192, 10120240, 20240480, 40480960]

約数ペア:

[(1, 40480960), (2, 20240480), (4, 10120240), (5, 8096192), (8, 5060120), (10, 4048096), (13, 3113920), (16, 2530060), (20, 2024048), (26, 1556960), (32, 1265030), (37, 1094080), (40, 1012024), (52, 778480), (64, 632515), (65, 622784), (74, 547040), (80, 506012), (104, 389240), (130, 311392), (148, 273520), (160, 253006), (185, 218816), (208, 194620), (260, 155696), (263, 153920), (296, 136760), (320, 126503), (370, 109408), (416, 97310), (481, 84160), (520, 77848), (526, 76960), (592, 68380), (740, 54704), (832, 48655), (962, 42080), (1040, 38924), (1052, 38480), (1184, 34190), (1315, 30784), (1480, 27352), (1924, 21040), (2080, 19462), (2104, 19240), (2368, 17095), (2405, 16832), (2630, 15392), (2960, 13676), (3419, 11840), (3848, 10520), (4160, 9731), (4208, 9620), (4810, 8416), (5260, 7696), (5920, 6838)]