16741980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{331}}^1$

素因数の和:627

約数の個数: 72

約数和(自身を含む): 51118704

約数和(自身を除く): 34376724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 331, 562, 662, 843, 993, 1124, 1324, 1405, 1655, 1686, 1986, 2529, 2810, 2979, 3310, 3372, 3972, 4215, 4965, 5058, 5620, 5958, 6620, 8430, 9930, 10116, 11916, 12645, 14895, 16860, 19860, 25290, 29790, 50580, 59580, 93011, 186022, 279033, 372044, 465055, 558066, 837099, 930110, 1116132, 1395165, 1674198, 1860220, 2790330, 3348396, 4185495, 5580660, 8370990, 16741980]

約数ペア:

[(1, 16741980), (2, 8370990), (3, 5580660), (4, 4185495), (5, 3348396), (6, 2790330), (9, 1860220), (10, 1674198), (12, 1395165), (15, 1116132), (18, 930110), (20, 837099), (30, 558066), (36, 465055), (45, 372044), (60, 279033), (90, 186022), (180, 93011), (281, 59580), (331, 50580), (562, 29790), (662, 25290), (843, 19860), (993, 16860), (1124, 14895), (1324, 12645), (1405, 11916), (1655, 10116), (1686, 9930), (1986, 8430), (2529, 6620), (2810, 5958), (2979, 5620), (3310, 5058), (3372, 4965), (3972, 4215)]