1299900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{619}}^1$

素因数の和:643

約数の個数: 72

約数和(自身を含む): 4305280

約数和(自身を除く): 3005380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 619, 700, 1050, 1238, 1857, 2100, 2476, 3095, 3714, 4333, 6190, 7428, 8666, 9285, 12380, 12999, 15475, 17332, 18570, 21665, 25998, 30950, 37140, 43330, 46425, 51996, 61900, 64995, 86660, 92850, 108325, 129990, 185700, 216650, 259980, 324975, 433300, 649950, 1299900]

約数ペア:

[(1, 1299900), (2, 649950), (3, 433300), (4, 324975), (5, 259980), (6, 216650), (7, 185700), (10, 129990), (12, 108325), (14, 92850), (15, 86660), (20, 64995), (21, 61900), (25, 51996), (28, 46425), (30, 43330), (35, 37140), (42, 30950), (50, 25998), (60, 21665), (70, 18570), (75, 17332), (84, 15475), (100, 12999), (105, 12380), (140, 9285), (150, 8666), (175, 7428), (210, 6190), (300, 4333), (350, 3714), (420, 3095), (525, 2476), (619, 2100), (700, 1857), (1050, 1238)]