161365120

素因数分解:

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

素因数の和:406

約数の個数: 128

約数和(自身を含む): 445536000

約数和(自身を除く): 284170880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 181, 199, 224, 280, 320, 362, 398, 448, 560, 640, 724, 796, 896, 905, 995, 1120, 1267, 1393, 1448, 1592, 1810, 1990, 2240, 2534, 2786, 2896, 3184, 3620, 3980, 4480, 5068, 5572, 5792, 6335, 6368, 6965, 7240, 7960, 10136, 11144, 11584, 12670, 12736, 13930, 14480, 15920, 20272, 22288, 23168, 25340, 25472, 27860, 28960, 31840, 36019, 40544, 44576, 50680, 55720, 57920, 63680, 72038, 81088, 89152, 101360, 111440, 115840, 127360, 144076, 162176, 178304, 180095, 202720, 222880, 252133, 288152, 360190, 405440, 445760, 504266, 576304, 720380, 810880, 891520, 1008532, 1152608, 1260665, 1440760, 2017064, 2305216, 2521330, 2881520, 4034128, 4610432, 5042660, 5763040, 8068256, 10085320, 11526080, 16136512, 20170640, 23052160, 32273024, 40341280, 80682560, 161365120]

約数ペア:

[(1, 161365120), (2, 80682560), (4, 40341280), (5, 32273024), (7, 23052160), (8, 20170640), (10, 16136512), (14, 11526080), (16, 10085320), (20, 8068256), (28, 5763040), (32, 5042660), (35, 4610432), (40, 4034128), (56, 2881520), (64, 2521330), (70, 2305216), (80, 2017064), (112, 1440760), (128, 1260665), (140, 1152608), (160, 1008532), (181, 891520), (199, 810880), (224, 720380), (280, 576304), (320, 504266), (362, 445760), (398, 405440), (448, 360190), (560, 288152), (640, 252133), (724, 222880), (796, 202720), (896, 180095), (905, 178304), (995, 162176), (1120, 144076), (1267, 127360), (1393, 115840), (1448, 111440), (1592, 101360), (1810, 89152), (1990, 81088), (2240, 72038), (2534, 63680), (2786, 57920), (2896, 55720), (3184, 50680), (3620, 44576), (3980, 40544), (4480, 36019), (5068, 31840), (5572, 28960), (5792, 27860), (6335, 25472), (6368, 25340), (6965, 23168), (7240, 22288), (7960, 20272), (10136, 15920), (11144, 14480), (11584, 13930), (12670, 12736)]