31580500

素因数分解:

$2^2\times 5^3\times 7^2\times {\mathrm{1289}}^1$

素因数の和:1322

約数の個数: 72

約数和(自身を含む): 80294760

約数和(自身を除く): 48714260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 125, 140, 175, 196, 245, 250, 350, 490, 500, 700, 875, 980, 1225, 1289, 1750, 2450, 2578, 3500, 4900, 5156, 6125, 6445, 9023, 12250, 12890, 18046, 24500, 25780, 32225, 36092, 45115, 63161, 64450, 90230, 126322, 128900, 161125, 180460, 225575, 252644, 315805, 322250, 451150, 631610, 644500, 902300, 1127875, 1263220, 1579025, 2255750, 3158050, 4511500, 6316100, 7895125, 15790250, 31580500]

約数ペア:

[(1, 31580500), (2, 15790250), (4, 7895125), (5, 6316100), (7, 4511500), (10, 3158050), (14, 2255750), (20, 1579025), (25, 1263220), (28, 1127875), (35, 902300), (49, 644500), (50, 631610), (70, 451150), (98, 322250), (100, 315805), (125, 252644), (140, 225575), (175, 180460), (196, 161125), (245, 128900), (250, 126322), (350, 90230), (490, 64450), (500, 63161), (700, 45115), (875, 36092), (980, 32225), (1225, 25780), (1289, 24500), (1750, 18046), (2450, 12890), (2578, 12250), (3500, 9023), (4900, 6445), (5156, 6125)]