161705440

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77743}}^1$

素因数の和:77771

約数の個数: 48

約数和(自身を含む): 411421248

約数和(自身を除く): 249715808

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 77743, 155486, 310972, 388715, 621944, 777430, 1010659, 1243888, 1554860, 2021318, 2487776, 3109720, 4042636, 5053295, 6219440, 8085272, 10106590, 12438880, 16170544, 20213180, 32341088, 40426360, 80852720, 161705440]

約数ペア:

[(1, 161705440), (2, 80852720), (4, 40426360), (5, 32341088), (8, 20213180), (10, 16170544), (13, 12438880), (16, 10106590), (20, 8085272), (26, 6219440), (32, 5053295), (40, 4042636), (52, 3109720), (65, 2487776), (80, 2021318), (104, 1554860), (130, 1243888), (160, 1010659), (208, 777430), (260, 621944), (416, 388715), (520, 310972), (1040, 155486), (2080, 77743)]