261738720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{181763}}^1$

素因数の和:181784

約数の個数: 72

約数和(自身を含む): 893188296

約数和(自身を除く): 631449576

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 181763, 363526, 545289, 727052, 908815, 1090578, 1454104, 1635867, 1817630, 2181156, 2726445, 2908208, 3271734, 3635260, 4362312, 5452890, 5816416, 6543468, 7270520, 8179335, 8724624, 10905780, 13086936, 14541040, 16358670, 17449248, 21811560, 26173872, 29082080, 32717340, 43623120, 52347744, 65434680, 87246240, 130869360, 261738720]

約数ペア:

[(1, 261738720), (2, 130869360), (3, 87246240), (4, 65434680), (5, 52347744), (6, 43623120), (8, 32717340), (9, 29082080), (10, 26173872), (12, 21811560), (15, 17449248), (16, 16358670), (18, 14541040), (20, 13086936), (24, 10905780), (30, 8724624), (32, 8179335), (36, 7270520), (40, 6543468), (45, 5816416), (48, 5452890), (60, 4362312), (72, 3635260), (80, 3271734), (90, 2908208), (96, 2726445), (120, 2181156), (144, 1817630), (160, 1635867), (180, 1454104), (240, 1090578), (288, 908815), (360, 727052), (480, 545289), (720, 363526), (1440, 181763)]