865437040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{832151}}^1$

素因数の和:832177

約数の個数: 40

約数和(自身を含む): 2166923808

約数和(自身を除く): 1301486768

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 832151, 1664302, 3328604, 4160755, 6657208, 8321510, 10817963, 13314416, 16643020, 21635926, 33286040, 43271852, 54089815, 66572080, 86543704, 108179630, 173087408, 216359260, 432718520, 865437040]

約数ペア:

[(1, 865437040), (2, 432718520), (4, 216359260), (5, 173087408), (8, 108179630), (10, 86543704), (13, 66572080), (16, 54089815), (20, 43271852), (26, 33286040), (40, 21635926), (52, 16643020), (65, 13314416), (80, 10817963), (104, 8321510), (130, 6657208), (208, 4160755), (260, 3328604), (520, 1664302), (1040, 832151)]