81088380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1361}}^1$

素因数の和:1707

約数の個数: 72

約数和(自身を含む): 246892464

約数和(自身を除く): 165804084

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 331, 662, 993, 1324, 1361, 1655, 1986, 2722, 2979, 3310, 3972, 4083, 4965, 5444, 5958, 6620, 6805, 8166, 9930, 11916, 12249, 13610, 14895, 16332, 19860, 20415, 24498, 27220, 29790, 40830, 48996, 59580, 61245, 81660, 122490, 244980, 450491, 900982, 1351473, 1801964, 2252455, 2702946, 4054419, 4504910, 5405892, 6757365, 8108838, 9009820, 13514730, 16217676, 20272095, 27029460, 40544190, 81088380]

約数ペア:

[(1, 81088380), (2, 40544190), (3, 27029460), (4, 20272095), (5, 16217676), (6, 13514730), (9, 9009820), (10, 8108838), (12, 6757365), (15, 5405892), (18, 4504910), (20, 4054419), (30, 2702946), (36, 2252455), (45, 1801964), (60, 1351473), (90, 900982), (180, 450491), (331, 244980), (662, 122490), (993, 81660), (1324, 61245), (1361, 59580), (1655, 48996), (1986, 40830), (2722, 29790), (2979, 27220), (3310, 24498), (3972, 20415), (4083, 19860), (4965, 16332), (5444, 14895), (5958, 13610), (6620, 12249), (6805, 11916), (8166, 9930)]