20920080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1301}}^1$

素因数の和:1384

約数の個数: 80

約数和(自身を含む): 65870784

約数和(自身を除く): 44950704

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 67, 80, 120, 134, 201, 240, 268, 335, 402, 536, 670, 804, 1005, 1072, 1301, 1340, 1608, 2010, 2602, 2680, 3216, 3903, 4020, 5204, 5360, 6505, 7806, 8040, 10408, 13010, 15612, 16080, 19515, 20816, 26020, 31224, 39030, 52040, 62448, 78060, 87167, 104080, 156120, 174334, 261501, 312240, 348668, 435835, 523002, 697336, 871670, 1046004, 1307505, 1394672, 1743340, 2092008, 2615010, 3486680, 4184016, 5230020, 6973360, 10460040, 20920080]

約数ペア:

[(1, 20920080), (2, 10460040), (3, 6973360), (4, 5230020), (5, 4184016), (6, 3486680), (8, 2615010), (10, 2092008), (12, 1743340), (15, 1394672), (16, 1307505), (20, 1046004), (24, 871670), (30, 697336), (40, 523002), (48, 435835), (60, 348668), (67, 312240), (80, 261501), (120, 174334), (134, 156120), (201, 104080), (240, 87167), (268, 78060), (335, 62448), (402, 52040), (536, 39030), (670, 31224), (804, 26020), (1005, 20816), (1072, 19515), (1301, 16080), (1340, 15612), (1608, 13010), (2010, 10408), (2602, 8040), (2680, 7806), (3216, 6505), (3903, 5360), (4020, 5204)]