20280113770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{461}}^1\times {\mathrm{1583}}^1$

素因数の和:2455

約数の個数: 64

約数和(自身を含む): 41941380096

約数和(自身を除く): 21661266326

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 397, 461, 794, 922, 1583, 1985, 2305, 2779, 3166, 3227, 3970, 4610, 5558, 6454, 7915, 11081, 13895, 15830, 16135, 22162, 27790, 32270, 55405, 110810, 183017, 366034, 628451, 729763, 915085, 1256902, 1281119, 1459526, 1830170, 2562238, 3142255, 3648815, 4399157, 5108341, 6284510, 6405595, 7297630, 8798314, 10216682, 12811190, 21995785, 25541705, 43991570, 51083410, 289715911, 579431822, 1448579555, 2028011377, 2897159110, 4056022754, 10140056885, 20280113770]

約数ペア:

[(1, 20280113770), (2, 10140056885), (5, 4056022754), (7, 2897159110), (10, 2028011377), (14, 1448579555), (35, 579431822), (70, 289715911), (397, 51083410), (461, 43991570), (794, 25541705), (922, 21995785), (1583, 12811190), (1985, 10216682), (2305, 8798314), (2779, 7297630), (3166, 6405595), (3227, 6284510), (3970, 5108341), (4610, 4399157), (5558, 3648815), (6454, 3142255), (7915, 2562238), (11081, 1830170), (13895, 1459526), (15830, 1281119), (16135, 1256902), (22162, 915085), (27790, 729763), (32270, 628451), (55405, 366034), (110810, 183017)]