1988550

素因数分解:

$2^1\times 3^4\times 5^2\times {\mathrm{491}}^1$

素因数の和:515

約数の個数: 60

約数和(自身を含む): 5536476

約数和(自身を除く): 3547926

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 81, 90, 135, 150, 162, 225, 270, 405, 450, 491, 675, 810, 982, 1350, 1473, 2025, 2455, 2946, 4050, 4419, 4910, 7365, 8838, 12275, 13257, 14730, 22095, 24550, 26514, 36825, 39771, 44190, 66285, 73650, 79542, 110475, 132570, 198855, 220950, 331425, 397710, 662850, 994275, 1988550]

約数ペア:

[(1, 1988550), (2, 994275), (3, 662850), (5, 397710), (6, 331425), (9, 220950), (10, 198855), (15, 132570), (18, 110475), (25, 79542), (27, 73650), (30, 66285), (45, 44190), (50, 39771), (54, 36825), (75, 26514), (81, 24550), (90, 22095), (135, 14730), (150, 13257), (162, 12275), (225, 8838), (270, 7365), (405, 4910), (450, 4419), (491, 4050), (675, 2946), (810, 2455), (982, 2025), (1350, 1473)]