78841720

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67967}}^1$

素因数の和:68007

約数の個数: 32

約数和(自身を含む): 183513600

約数和(自身を除く): 104671880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 67967, 135934, 271868, 339835, 543736, 679670, 1359340, 1971043, 2718680, 3942086, 7884172, 9855215, 15768344, 19710430, 39420860, 78841720]

約数ペア:

[(1, 78841720), (2, 39420860), (4, 19710430), (5, 15768344), (8, 9855215), (10, 7884172), (20, 3942086), (29, 2718680), (40, 1971043), (58, 1359340), (116, 679670), (145, 543736), (232, 339835), (290, 271868), (580, 135934), (1160, 67967)]