81377100

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{12917}}^1$

素因数の和:12944

約数の個数: 108

約数和(自身を含む): 291533424

約数和(自身を除く): 210156324

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 28, 30, 35, 36, 42, 45, 50, 60, 63, 70, 75, 84, 90, 100, 105, 126, 140, 150, 175, 180, 210, 225, 252, 300, 315, 350, 420, 450, 525, 630, 700, 900, 1050, 1260, 1575, 2100, 3150, 6300, 12917, 25834, 38751, 51668, 64585, 77502, 90419, 116253, 129170, 155004, 180838, 193755, 232506, 258340, 271257, 322925, 361676, 387510, 452095, 465012, 542514, 581265, 645850, 775020, 813771, 904190, 968775, 1085028, 1162530, 1291700, 1356285, 1627542, 1808380, 1937550, 2260475, 2325060, 2712570, 2906325, 3255084, 3875100, 4068855, 4520950, 5425140, 5812650, 6781425, 8137710, 9041900, 11625300, 13562850, 16275420, 20344275, 27125700, 40688550, 81377100]

約数ペア:

[(1, 81377100), (2, 40688550), (3, 27125700), (4, 20344275), (5, 16275420), (6, 13562850), (7, 11625300), (9, 9041900), (10, 8137710), (12, 6781425), (14, 5812650), (15, 5425140), (18, 4520950), (20, 4068855), (21, 3875100), (25, 3255084), (28, 2906325), (30, 2712570), (35, 2325060), (36, 2260475), (42, 1937550), (45, 1808380), (50, 1627542), (60, 1356285), (63, 1291700), (70, 1162530), (75, 1085028), (84, 968775), (90, 904190), (100, 813771), (105, 775020), (126, 645850), (140, 581265), (150, 542514), (175, 465012), (180, 452095), (210, 387510), (225, 361676), (252, 322925), (300, 271257), (315, 258340), (350, 232506), (420, 193755), (450, 180838), (525, 155004), (630, 129170), (700, 116253), (900, 90419), (1050, 77502), (1260, 64585), (1575, 51668), (2100, 38751), (3150, 25834), (6300, 12917)]