87214540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{1091}}^1$

素因数の和:1678

約数の個数: 48

約数和(自身を含む): 209873664

約数和(自身を除く): 122659124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 571, 1091, 1142, 2182, 2284, 2855, 3997, 4364, 5455, 5710, 7637, 7994, 10910, 11420, 15274, 15988, 19985, 21820, 30548, 38185, 39970, 76370, 79940, 152740, 622961, 1245922, 2491844, 3114805, 4360727, 6229610, 8721454, 12459220, 17442908, 21803635, 43607270, 87214540]

約数ペア:

[(1, 87214540), (2, 43607270), (4, 21803635), (5, 17442908), (7, 12459220), (10, 8721454), (14, 6229610), (20, 4360727), (28, 3114805), (35, 2491844), (70, 1245922), (140, 622961), (571, 152740), (1091, 79940), (1142, 76370), (2182, 39970), (2284, 38185), (2855, 30548), (3997, 21820), (4364, 19985), (5455, 15988), (5710, 15274), (7637, 11420), (7994, 10910)]