217120500

素因数分解:

$2^2\times 3^5\times 5^3\times {\mathrm{1787}}^1$

素因数の和:1821

約数の個数: 144

約数和(自身を含む): 710708544

約数和(自身を除く): 493588044

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 125, 135, 150, 162, 180, 225, 243, 250, 270, 300, 324, 375, 405, 450, 486, 500, 540, 675, 750, 810, 900, 972, 1125, 1215, 1350, 1500, 1620, 1787, 2025, 2250, 2430, 2700, 3375, 3574, 4050, 4500, 4860, 5361, 6075, 6750, 7148, 8100, 8935, 10125, 10722, 12150, 13500, 16083, 17870, 20250, 21444, 24300, 26805, 30375, 32166, 35740, 40500, 44675, 48249, 53610, 60750, 64332, 80415, 89350, 96498, 107220, 121500, 134025, 144747, 160830, 178700, 192996, 223375, 241245, 268050, 289494, 321660, 402075, 434241, 446750, 482490, 536100, 578988, 670125, 723735, 804150, 868482, 893500, 964980, 1206225, 1340250, 1447470, 1608300, 1736964, 2010375, 2171205, 2412450, 2680500, 2894940, 3618675, 4020750, 4342410, 4824900, 6031125, 7237350, 8041500, 8684820, 10856025, 12062250, 14474700, 18093375, 21712050, 24124500, 36186750, 43424100, 54280125, 72373500, 108560250, 217120500]

約数ペア:

[(1, 217120500), (2, 108560250), (3, 72373500), (4, 54280125), (5, 43424100), (6, 36186750), (9, 24124500), (10, 21712050), (12, 18093375), (15, 14474700), (18, 12062250), (20, 10856025), (25, 8684820), (27, 8041500), (30, 7237350), (36, 6031125), (45, 4824900), (50, 4342410), (54, 4020750), (60, 3618675), (75, 2894940), (81, 2680500), (90, 2412450), (100, 2171205), (108, 2010375), (125, 1736964), (135, 1608300), (150, 1447470), (162, 1340250), (180, 1206225), (225, 964980), (243, 893500), (250, 868482), (270, 804150), (300, 723735), (324, 670125), (375, 578988), (405, 536100), (450, 482490), (486, 446750), (500, 434241), (540, 402075), (675, 321660), (750, 289494), (810, 268050), (900, 241245), (972, 223375), (1125, 192996), (1215, 178700), (1350, 160830), (1500, 144747), (1620, 134025), (1787, 121500), (2025, 107220), (2250, 96498), (2430, 89350), (2700, 80415), (3375, 64332), (3574, 60750), (4050, 53610), (4500, 48249), (4860, 44675), (5361, 40500), (6075, 35740), (6750, 32166), (7148, 30375), (8100, 26805), (8935, 24300), (10125, 21444), (10722, 20250), (12150, 17870), (13500, 16083)]