68785020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1453}}^1$

素因数の和:1731

約数の個数: 72

約数和(自身を含む): 209585376

約数和(自身を除く): 140800356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 263, 526, 789, 1052, 1315, 1453, 1578, 2367, 2630, 2906, 3156, 3945, 4359, 4734, 5260, 5812, 7265, 7890, 8718, 9468, 11835, 13077, 14530, 15780, 17436, 21795, 23670, 26154, 29060, 43590, 47340, 52308, 65385, 87180, 130770, 261540, 382139, 764278, 1146417, 1528556, 1910695, 2292834, 3439251, 3821390, 4585668, 5732085, 6878502, 7642780, 11464170, 13757004, 17196255, 22928340, 34392510, 68785020]

約数ペア:

[(1, 68785020), (2, 34392510), (3, 22928340), (4, 17196255), (5, 13757004), (6, 11464170), (9, 7642780), (10, 6878502), (12, 5732085), (15, 4585668), (18, 3821390), (20, 3439251), (30, 2292834), (36, 1910695), (45, 1528556), (60, 1146417), (90, 764278), (180, 382139), (263, 261540), (526, 130770), (789, 87180), (1052, 65385), (1315, 52308), (1453, 47340), (1578, 43590), (2367, 29060), (2630, 26154), (2906, 23670), (3156, 21795), (3945, 17436), (4359, 15780), (4734, 14530), (5260, 13077), (5812, 11835), (7265, 9468), (7890, 8718)]