172220940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1361}}^1$

素因数の和:1432

約数の個数: 144

約数和(自身を含む): 565175520

約数和(自身を除く): 392954580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 37, 38, 45, 57, 60, 74, 76, 90, 95, 111, 114, 148, 171, 180, 185, 190, 222, 228, 285, 333, 342, 370, 380, 444, 555, 570, 666, 684, 703, 740, 855, 1110, 1140, 1332, 1361, 1406, 1665, 1710, 2109, 2220, 2722, 2812, 3330, 3420, 3515, 4083, 4218, 5444, 6327, 6660, 6805, 7030, 8166, 8436, 10545, 12249, 12654, 13610, 14060, 16332, 20415, 21090, 24498, 25308, 25859, 27220, 31635, 40830, 42180, 48996, 50357, 51718, 61245, 63270, 77577, 81660, 100714, 103436, 122490, 126540, 129295, 151071, 155154, 201428, 232731, 244980, 251785, 258590, 302142, 310308, 387885, 453213, 465462, 503570, 517180, 604284, 755355, 775770, 906426, 930924, 956783, 1007140, 1163655, 1510710, 1551540, 1812852, 1913566, 2266065, 2327310, 2870349, 3021420, 3827132, 4532130, 4654620, 4783915, 5740698, 8611047, 9064260, 9567830, 11481396, 14351745, 17222094, 19135660, 28703490, 34444188, 43055235, 57406980, 86110470, 172220940]

約数ペア:

[(1, 172220940), (2, 86110470), (3, 57406980), (4, 43055235), (5, 34444188), (6, 28703490), (9, 19135660), (10, 17222094), (12, 14351745), (15, 11481396), (18, 9567830), (19, 9064260), (20, 8611047), (30, 5740698), (36, 4783915), (37, 4654620), (38, 4532130), (45, 3827132), (57, 3021420), (60, 2870349), (74, 2327310), (76, 2266065), (90, 1913566), (95, 1812852), (111, 1551540), (114, 1510710), (148, 1163655), (171, 1007140), (180, 956783), (185, 930924), (190, 906426), (222, 775770), (228, 755355), (285, 604284), (333, 517180), (342, 503570), (370, 465462), (380, 453213), (444, 387885), (555, 310308), (570, 302142), (666, 258590), (684, 251785), (703, 244980), (740, 232731), (855, 201428), (1110, 155154), (1140, 151071), (1332, 129295), (1361, 126540), (1406, 122490), (1665, 103436), (1710, 100714), (2109, 81660), (2220, 77577), (2722, 63270), (2812, 61245), (3330, 51718), (3420, 50357), (3515, 48996), (4083, 42180), (4218, 40830), (5444, 31635), (6327, 27220), (6660, 25859), (6805, 25308), (7030, 24498), (8166, 21090), (8436, 20415), (10545, 16332), (12249, 14060), (12654, 13610)]