215505000

素因数分解:

$2^3\times 3^2\times 5^4\times {\mathrm{4789}}^1$

素因数の和:4821

約数の個数: 120

約数和(自身を含む): 729493050

約数和(自身を除く): 513988050

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 30, 36, 40, 45, 50, 60, 72, 75, 90, 100, 120, 125, 150, 180, 200, 225, 250, 300, 360, 375, 450, 500, 600, 625, 750, 900, 1000, 1125, 1250, 1500, 1800, 1875, 2250, 2500, 3000, 3750, 4500, 4789, 5000, 5625, 7500, 9000, 9578, 11250, 14367, 15000, 19156, 22500, 23945, 28734, 38312, 43101, 45000, 47890, 57468, 71835, 86202, 95780, 114936, 119725, 143670, 172404, 191560, 215505, 239450, 287340, 344808, 359175, 431010, 478900, 574680, 598625, 718350, 862020, 957800, 1077525, 1197250, 1436700, 1724040, 1795875, 2155050, 2394500, 2873400, 2993125, 3591750, 4310100, 4789000, 5387625, 5986250, 7183500, 8620200, 8979375, 10775250, 11972500, 14367000, 17958750, 21550500, 23945000, 26938125, 35917500, 43101000, 53876250, 71835000, 107752500, 215505000]

約数ペア:

[(1, 215505000), (2, 107752500), (3, 71835000), (4, 53876250), (5, 43101000), (6, 35917500), (8, 26938125), (9, 23945000), (10, 21550500), (12, 17958750), (15, 14367000), (18, 11972500), (20, 10775250), (24, 8979375), (25, 8620200), (30, 7183500), (36, 5986250), (40, 5387625), (45, 4789000), (50, 4310100), (60, 3591750), (72, 2993125), (75, 2873400), (90, 2394500), (100, 2155050), (120, 1795875), (125, 1724040), (150, 1436700), (180, 1197250), (200, 1077525), (225, 957800), (250, 862020), (300, 718350), (360, 598625), (375, 574680), (450, 478900), (500, 431010), (600, 359175), (625, 344808), (750, 287340), (900, 239450), (1000, 215505), (1125, 191560), (1250, 172404), (1500, 143670), (1800, 119725), (1875, 114936), (2250, 95780), (2500, 86202), (3000, 71835), (3750, 57468), (4500, 47890), (4789, 45000), (5000, 43101), (5625, 38312), (7500, 28734), (9000, 23945), (9578, 22500), (11250, 19156), (14367, 15000)]