80215920

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{12379}}^1$

素因数の和:12404

約数の個数: 100

約数和(自身を含む): 278624280

約数和(自身を除く): 198408360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 12379, 24758, 37137, 49516, 61895, 74274, 99032, 111411, 123790, 148548, 185685, 198064, 222822, 247580, 297096, 334233, 371370, 445644, 495160, 557055, 594192, 668466, 742740, 891288, 990320, 1002699, 1114110, 1336932, 1485480, 1671165, 1782576, 2005398, 2228220, 2673864, 2970960, 3342330, 4010796, 4456440, 5013495, 5347728, 6684660, 8021592, 8912880, 10026990, 13369320, 16043184, 20053980, 26738640, 40107960, 80215920]

約数ペア:

[(1, 80215920), (2, 40107960), (3, 26738640), (4, 20053980), (5, 16043184), (6, 13369320), (8, 10026990), (9, 8912880), (10, 8021592), (12, 6684660), (15, 5347728), (16, 5013495), (18, 4456440), (20, 4010796), (24, 3342330), (27, 2970960), (30, 2673864), (36, 2228220), (40, 2005398), (45, 1782576), (48, 1671165), (54, 1485480), (60, 1336932), (72, 1114110), (80, 1002699), (81, 990320), (90, 891288), (108, 742740), (120, 668466), (135, 594192), (144, 557055), (162, 495160), (180, 445644), (216, 371370), (240, 334233), (270, 297096), (324, 247580), (360, 222822), (405, 198064), (432, 185685), (540, 148548), (648, 123790), (720, 111411), (810, 99032), (1080, 74274), (1296, 61895), (1620, 49516), (2160, 37137), (3240, 24758), (6480, 12379)]