20011500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{4447}}^1$

素因数の和:4472

約数の個数: 72

約数和(自身を含む): 63143808

約数和(自身を除く): 43132308

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 125, 150, 180, 225, 250, 300, 375, 450, 500, 750, 900, 1125, 1500, 2250, 4447, 4500, 8894, 13341, 17788, 22235, 26682, 40023, 44470, 53364, 66705, 80046, 88940, 111175, 133410, 160092, 200115, 222350, 266820, 333525, 400230, 444700, 555875, 667050, 800460, 1000575, 1111750, 1334100, 1667625, 2001150, 2223500, 3335250, 4002300, 5002875, 6670500, 10005750, 20011500]

約数ペア:

[(1, 20011500), (2, 10005750), (3, 6670500), (4, 5002875), (5, 4002300), (6, 3335250), (9, 2223500), (10, 2001150), (12, 1667625), (15, 1334100), (18, 1111750), (20, 1000575), (25, 800460), (30, 667050), (36, 555875), (45, 444700), (50, 400230), (60, 333525), (75, 266820), (90, 222350), (100, 200115), (125, 160092), (150, 133410), (180, 111175), (225, 88940), (250, 80046), (300, 66705), (375, 53364), (450, 44470), (500, 40023), (750, 26682), (900, 22235), (1125, 17788), (1500, 13341), (2250, 8894), (4447, 4500)]