686436699260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{20788513}}^1$

素因数の和:20788662

約数の個数: 48

約数和(自身を含む): 1564626717696

約数和(自身を除く): 878190018436

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 1270, 1651, 2540, 3302, 6604, 8255, 16510, 33020, 20788513, 41577026, 83154052, 103942565, 207885130, 270250669, 415770260, 540501338, 1081002676, 1351253345, 2640141151, 2702506690, 5280282302, 5405013380, 10560564604, 13200705755, 26401411510, 34321834963, 52802823020, 68643669926, 137287339852, 171609174815, 343218349630, 686436699260]

約数ペア:

[(1, 686436699260), (2, 343218349630), (4, 171609174815), (5, 137287339852), (10, 68643669926), (13, 52802823020), (20, 34321834963), (26, 26401411510), (52, 13200705755), (65, 10560564604), (127, 5405013380), (130, 5280282302), (254, 2702506690), (260, 2640141151), (508, 1351253345), (635, 1081002676), (1270, 540501338), (1651, 415770260), (2540, 270250669), (3302, 207885130), (6604, 103942565), (8255, 83154052), (16510, 41577026), (33020, 20788513)]