398470880

素因数分解:

$2^5\times 5^1\times {\mathrm{151}}^1\times {\mathrm{16493}}^1$

素因数の和:16659

約数の個数: 48

約数和(自身を含む): 947679264

約数和(自身を除く): 549208384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 151, 160, 302, 604, 755, 1208, 1510, 2416, 3020, 4832, 6040, 12080, 16493, 24160, 32986, 65972, 82465, 131944, 164930, 263888, 329860, 527776, 659720, 1319440, 2490443, 2638880, 4980886, 9961772, 12452215, 19923544, 24904430, 39847088, 49808860, 79694176, 99617720, 199235440, 398470880]

約数ペア:

[(1, 398470880), (2, 199235440), (4, 99617720), (5, 79694176), (8, 49808860), (10, 39847088), (16, 24904430), (20, 19923544), (32, 12452215), (40, 9961772), (80, 4980886), (151, 2638880), (160, 2490443), (302, 1319440), (604, 659720), (755, 527776), (1208, 329860), (1510, 263888), (2416, 164930), (3020, 131944), (4832, 82465), (6040, 65972), (12080, 32986), (16493, 24160)]