80682560

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:404

約数の個数: 112

約数和(自身を含む): 221894400

約数和(自身を除く): 141211840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 181, 199, 224, 280, 320, 362, 398, 448, 560, 724, 796, 905, 995, 1120, 1267, 1393, 1448, 1592, 1810, 1990, 2240, 2534, 2786, 2896, 3184, 3620, 3980, 5068, 5572, 5792, 6335, 6368, 6965, 7240, 7960, 10136, 11144, 11584, 12670, 12736, 13930, 14480, 15920, 20272, 22288, 25340, 27860, 28960, 31840, 36019, 40544, 44576, 50680, 55720, 57920, 63680, 72038, 81088, 89152, 101360, 111440, 144076, 180095, 202720, 222880, 252133, 288152, 360190, 405440, 445760, 504266, 576304, 720380, 1008532, 1152608, 1260665, 1440760, 2017064, 2305216, 2521330, 2881520, 4034128, 5042660, 5763040, 8068256, 10085320, 11526080, 16136512, 20170640, 40341280, 80682560]

約数ペア:

[(1, 80682560), (2, 40341280), (4, 20170640), (5, 16136512), (7, 11526080), (8, 10085320), (10, 8068256), (14, 5763040), (16, 5042660), (20, 4034128), (28, 2881520), (32, 2521330), (35, 2305216), (40, 2017064), (56, 1440760), (64, 1260665), (70, 1152608), (80, 1008532), (112, 720380), (140, 576304), (160, 504266), (181, 445760), (199, 405440), (224, 360190), (280, 288152), (320, 252133), (362, 222880), (398, 202720), (448, 180095), (560, 144076), (724, 111440), (796, 101360), (905, 89152), (995, 81088), (1120, 72038), (1267, 63680), (1393, 57920), (1448, 55720), (1592, 50680), (1810, 44576), (1990, 40544), (2240, 36019), (2534, 31840), (2786, 28960), (2896, 27860), (3184, 25340), (3620, 22288), (3980, 20272), (5068, 15920), (5572, 14480), (5792, 13930), (6335, 12736), (6368, 12670), (6965, 11584), (7240, 11144), (7960, 10136)]