128772320

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{9043}}^1$

素因数の和:9147

約数の個数: 48

約数和(自身を含む): 307676880

約数和(自身を除く): 178904560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1424, 1780, 2848, 3560, 7120, 9043, 14240, 18086, 36172, 45215, 72344, 90430, 144688, 180860, 289376, 361720, 723440, 804827, 1446880, 1609654, 3219308, 4024135, 6438616, 8048270, 12877232, 16096540, 25754464, 32193080, 64386160, 128772320]

約数ペア:

[(1, 128772320), (2, 64386160), (4, 32193080), (5, 25754464), (8, 16096540), (10, 12877232), (16, 8048270), (20, 6438616), (32, 4024135), (40, 3219308), (80, 1609654), (89, 1446880), (160, 804827), (178, 723440), (356, 361720), (445, 289376), (712, 180860), (890, 144688), (1424, 90430), (1780, 72344), (2848, 45215), (3560, 36172), (7120, 18086), (9043, 14240)]