1239401900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{26203}}^1$

素因数の和:26271

約数の個数: 72

約数和(自身を含む): 3002349504

約数和(自身を除く): 1762947604

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 430, 473, 550, 860, 946, 1075, 1100, 1892, 2150, 2365, 4300, 4730, 9460, 11825, 23650, 26203, 47300, 52406, 104812, 131015, 262030, 288233, 524060, 576466, 655075, 1126729, 1152932, 1310150, 1441165, 2253458, 2620300, 2882330, 4506916, 5633645, 5764660, 7205825, 11267290, 12394019, 14411650, 22534580, 24788038, 28168225, 28823300, 49576076, 56336450, 61970095, 112672900, 123940190, 247880380, 309850475, 619700950, 1239401900]

約数ペア:

[(1, 1239401900), (2, 619700950), (4, 309850475), (5, 247880380), (10, 123940190), (11, 112672900), (20, 61970095), (22, 56336450), (25, 49576076), (43, 28823300), (44, 28168225), (50, 24788038), (55, 22534580), (86, 14411650), (100, 12394019), (110, 11267290), (172, 7205825), (215, 5764660), (220, 5633645), (275, 4506916), (430, 2882330), (473, 2620300), (550, 2253458), (860, 1441165), (946, 1310150), (1075, 1152932), (1100, 1126729), (1892, 655075), (2150, 576466), (2365, 524060), (4300, 288233), (4730, 262030), (9460, 131015), (11825, 104812), (23650, 52406), (26203, 47300)]