20739992

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:976

約数の個数: 64

約数和(自身を含む): 49459200

約数和(自身を除く): 28719208

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 31, 52, 56, 62, 91, 104, 124, 182, 217, 248, 364, 403, 434, 728, 806, 868, 919, 1612, 1736, 1838, 2821, 3224, 3676, 5642, 6433, 7352, 11284, 11947, 12866, 22568, 23894, 25732, 28489, 47788, 51464, 56978, 83629, 95576, 113956, 167258, 199423, 227912, 334516, 370357, 398846, 669032, 740714, 797692, 1481428, 1595384, 2592499, 2962856, 5184998, 10369996, 20739992]

約数ペア:

[(1, 20739992), (2, 10369996), (4, 5184998), (7, 2962856), (8, 2592499), (13, 1595384), (14, 1481428), (26, 797692), (28, 740714), (31, 669032), (52, 398846), (56, 370357), (62, 334516), (91, 227912), (104, 199423), (124, 167258), (182, 113956), (217, 95576), (248, 83629), (364, 56978), (403, 51464), (434, 47788), (728, 28489), (806, 25732), (868, 23894), (919, 22568), (1612, 12866), (1736, 11947), (1838, 11284), (2821, 7352), (3224, 6433), (3676, 5642)]