20605500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:285

約数の個数: 144

約数和(自身を含む): 68708640

約数和(自身を除く): 48103140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 25, 30, 36, 38, 45, 50, 57, 60, 75, 76, 90, 95, 100, 114, 125, 150, 171, 180, 190, 225, 228, 241, 250, 285, 300, 342, 375, 380, 450, 475, 482, 500, 570, 684, 723, 750, 855, 900, 950, 964, 1125, 1140, 1205, 1425, 1446, 1500, 1710, 1900, 2169, 2250, 2375, 2410, 2850, 2892, 3420, 3615, 4275, 4338, 4500, 4579, 4750, 4820, 5700, 6025, 7125, 7230, 8550, 8676, 9158, 9500, 10845, 12050, 13737, 14250, 14460, 17100, 18075, 18316, 21375, 21690, 22895, 24100, 27474, 28500, 30125, 36150, 41211, 42750, 43380, 45790, 54225, 54948, 60250, 68685, 72300, 82422, 85500, 90375, 91580, 108450, 114475, 120500, 137370, 164844, 180750, 206055, 216900, 228950, 271125, 274740, 343425, 361500, 412110, 457900, 542250, 572375, 686850, 824220, 1030275, 1084500, 1144750, 1373700, 1717125, 2060550, 2289500, 3434250, 4121100, 5151375, 6868500, 10302750, 20605500]

約数ペア:

[(1, 20605500), (2, 10302750), (3, 6868500), (4, 5151375), (5, 4121100), (6, 3434250), (9, 2289500), (10, 2060550), (12, 1717125), (15, 1373700), (18, 1144750), (19, 1084500), (20, 1030275), (25, 824220), (30, 686850), (36, 572375), (38, 542250), (45, 457900), (50, 412110), (57, 361500), (60, 343425), (75, 274740), (76, 271125), (90, 228950), (95, 216900), (100, 206055), (114, 180750), (125, 164844), (150, 137370), (171, 120500), (180, 114475), (190, 108450), (225, 91580), (228, 90375), (241, 85500), (250, 82422), (285, 72300), (300, 68685), (342, 60250), (375, 54948), (380, 54225), (450, 45790), (475, 43380), (482, 42750), (500, 41211), (570, 36150), (684, 30125), (723, 28500), (750, 27474), (855, 24100), (900, 22895), (950, 21690), (964, 21375), (1125, 18316), (1140, 18075), (1205, 17100), (1425, 14460), (1446, 14250), (1500, 13737), (1710, 12050), (1900, 10845), (2169, 9500), (2250, 9158), (2375, 8676), (2410, 8550), (2850, 7230), (2892, 7125), (3420, 6025), (3615, 5700), (4275, 4820), (4338, 4750), (4500, 4579)]