1561174740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{26203}}^1$

素因数の和:26549

約数の個数: 72

約数和(自身を含む): 4750051488

約数和(自身を除く): 3188876748

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, 1655, 1986, 2979, 3310, 3972, 4965, 5958, 6620, 9930, 11916, 14895, 19860, 26203, 29790, 52406, 59580, 78609, 104812, 131015, 157218, 235827, 262030, 314436, 393045, 471654, 524060, 786090, 943308, 1179135, 1572180, 2358270, 4716540, 8673193, 17346386, 26019579, 34692772, 43365965, 52039158, 78058737, 86731930, 104078316, 130097895, 156117474, 173463860, 260195790, 312234948, 390293685, 520391580, 780587370, 1561174740]

約数ペア:

[(1, 1561174740), (2, 780587370), (3, 520391580), (4, 390293685), (5, 312234948), (6, 260195790), (9, 173463860), (10, 156117474), (12, 130097895), (15, 104078316), (18, 86731930), (20, 78058737), (30, 52039158), (36, 43365965), (45, 34692772), (60, 26019579), (90, 17346386), (180, 8673193), (331, 4716540), (662, 2358270), (993, 1572180), (1324, 1179135), (1655, 943308), (1986, 786090), (2979, 524060), (3310, 471654), (3972, 393045), (4965, 314436), (5958, 262030), (6620, 235827), (9930, 157218), (11916, 131015), (14895, 104812), (19860, 78609), (26203, 59580), (29790, 52406)]