26578620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{991}}^1$

素因数の和:1155

約数の個数: 72

約数和(自身を含む): 81244800

約数和(自身を除く): 54666180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 149, 180, 298, 447, 596, 745, 894, 991, 1341, 1490, 1788, 1982, 2235, 2682, 2973, 2980, 3964, 4470, 4955, 5364, 5946, 6705, 8919, 8940, 9910, 11892, 13410, 14865, 17838, 19820, 26820, 29730, 35676, 44595, 59460, 89190, 147659, 178380, 295318, 442977, 590636, 738295, 885954, 1328931, 1476590, 1771908, 2214885, 2657862, 2953180, 4429770, 5315724, 6644655, 8859540, 13289310, 26578620]

約数ペア:

[(1, 26578620), (2, 13289310), (3, 8859540), (4, 6644655), (5, 5315724), (6, 4429770), (9, 2953180), (10, 2657862), (12, 2214885), (15, 1771908), (18, 1476590), (20, 1328931), (30, 885954), (36, 738295), (45, 590636), (60, 442977), (90, 295318), (149, 178380), (180, 147659), (298, 89190), (447, 59460), (596, 44595), (745, 35676), (894, 29730), (991, 26820), (1341, 19820), (1490, 17838), (1788, 14865), (1982, 13410), (2235, 11892), (2682, 9910), (2973, 8940), (2980, 8919), (3964, 6705), (4470, 5946), (4955, 5364)]