21638640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{3109}}^1$

素因数の和:3154

約数の個数: 80

約数和(自身を含む): 69415200

約数和(自身を除く): 47776560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 48, 58, 60, 80, 87, 116, 120, 145, 174, 232, 240, 290, 348, 435, 464, 580, 696, 870, 1160, 1392, 1740, 2320, 3109, 3480, 6218, 6960, 9327, 12436, 15545, 18654, 24872, 31090, 37308, 46635, 49744, 62180, 74616, 90161, 93270, 124360, 149232, 180322, 186540, 248720, 270483, 360644, 373080, 450805, 540966, 721288, 746160, 901610, 1081932, 1352415, 1442576, 1803220, 2163864, 2704830, 3606440, 4327728, 5409660, 7212880, 10819320, 21638640]

約数ペア:

[(1, 21638640), (2, 10819320), (3, 7212880), (4, 5409660), (5, 4327728), (6, 3606440), (8, 2704830), (10, 2163864), (12, 1803220), (15, 1442576), (16, 1352415), (20, 1081932), (24, 901610), (29, 746160), (30, 721288), (40, 540966), (48, 450805), (58, 373080), (60, 360644), (80, 270483), (87, 248720), (116, 186540), (120, 180322), (145, 149232), (174, 124360), (232, 93270), (240, 90161), (290, 74616), (348, 62180), (435, 49744), (464, 46635), (580, 37308), (696, 31090), (870, 24872), (1160, 18654), (1392, 15545), (1740, 12436), (2320, 9327), (3109, 6960), (3480, 6218)]