86842640

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{12197}}^1$

素因数の和:12299

約数の個数: 40

約数和(自身を含む): 204194520

約数和(自身を除く): 117351880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 12197, 24394, 48788, 60985, 97576, 121970, 195152, 243940, 487880, 975760, 1085533, 2171066, 4342132, 5427665, 8684264, 10855330, 17368528, 21710660, 43421320, 86842640]

約数ペア:

[(1, 86842640), (2, 43421320), (4, 21710660), (5, 17368528), (8, 10855330), (10, 8684264), (16, 5427665), (20, 4342132), (40, 2171066), (80, 1085533), (89, 975760), (178, 487880), (356, 243940), (445, 195152), (712, 121970), (890, 97576), (1424, 60985), (1780, 48788), (3560, 24394), (7120, 12197)]