161984140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{1543}}^1$

素因数の和:1762

約数の個数: 48

約数和(自身を含む): 354070080

約数和(自身を除く): 192085940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 181, 290, 362, 580, 724, 905, 1543, 1810, 3086, 3620, 5249, 6172, 7715, 10498, 15430, 20996, 26245, 30860, 44747, 52490, 89494, 104980, 178988, 223735, 279283, 447470, 558566, 894940, 1117132, 1396415, 2792830, 5585660, 8099207, 16198414, 32396828, 40496035, 80992070, 161984140]

約数ペア:

[(1, 161984140), (2, 80992070), (4, 40496035), (5, 32396828), (10, 16198414), (20, 8099207), (29, 5585660), (58, 2792830), (116, 1396415), (145, 1117132), (181, 894940), (290, 558566), (362, 447470), (580, 279283), (724, 223735), (905, 178988), (1543, 104980), (1810, 89494), (3086, 52490), (3620, 44747), (5249, 30860), (6172, 26245), (7715, 20996), (10498, 15430)]