20909700

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{3319}}^1$

素因数の和:3346

約数の個数: 108

約数和(自身を含む): 74925760

約数和(自身を除く): 54016060

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, 3319, 6300, 6638, 9957, 13276, 16595, 19914, 23233, 29871, 33190, 39828, 46466, 49785, 59742, 66380, 69699, 82975, 92932, 99570, 116165, 119484, 139398, 149355, 165950, 199140, 209097, 232330, 248925, 278796, 298710, 331900, 348495, 418194, 464660, 497850, 580825, 597420, 696990, 746775, 836388, 995700, 1045485, 1161650, 1393980, 1493550, 1742475, 2090970, 2323300, 2987100, 3484950, 4181940, 5227425, 6969900, 10454850, 20909700]

約数ペア:

[(1, 20909700), (2, 10454850), (3, 6969900), (4, 5227425), (5, 4181940), (6, 3484950), (7, 2987100), (9, 2323300), (10, 2090970), (12, 1742475), (14, 1493550), (15, 1393980), (18, 1161650), (20, 1045485), (21, 995700), (25, 836388), (28, 746775), (30, 696990), (35, 597420), (36, 580825), (42, 497850), (45, 464660), (50, 418194), (60, 348495), (63, 331900), (70, 298710), (75, 278796), (84, 248925), (90, 232330), (100, 209097), (105, 199140), (126, 165950), (140, 149355), (150, 139398), (175, 119484), (180, 116165), (210, 99570), (225, 92932), (252, 82975), (300, 69699), (315, 66380), (350, 59742), (420, 49785), (450, 46466), (525, 39828), (630, 33190), (700, 29871), (900, 23233), (1050, 19914), (1260, 16595), (1575, 13276), (2100, 9957), (3150, 6638), (3319, 6300)]