25181460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:270

約数の個数: 144

約数和(自身を含む): 82992000

約数和(自身を除く): 57810540

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, 199, 222, 228, 285, 333, 342, 370, 380, 398, 444, 555, 570, 597, 666, 684, 703, 740, 796, 855, 995, 1110, 1140, 1194, 1332, 1406, 1665, 1710, 1791, 1990, 2109, 2220, 2388, 2812, 2985, 3330, 3420, 3515, 3582, 3781, 3980, 4218, 5970, 6327, 6660, 7030, 7164, 7363, 7562, 8436, 8955, 10545, 11343, 11940, 12654, 14060, 14726, 15124, 17910, 18905, 21090, 22089, 22686, 25308, 29452, 31635, 34029, 35820, 36815, 37810, 42180, 44178, 45372, 56715, 63270, 66267, 68058, 73630, 75620, 88356, 110445, 113430, 126540, 132534, 136116, 139897, 147260, 170145, 220890, 226860, 265068, 279794, 331335, 340290, 419691, 441780, 559588, 662670, 680580, 699485, 839382, 1259073, 1325340, 1398970, 1678764, 2098455, 2518146, 2797940, 4196910, 5036292, 6295365, 8393820, 12590730, 25181460]

約数ペア:

[(1, 25181460), (2, 12590730), (3, 8393820), (4, 6295365), (5, 5036292), (6, 4196910), (9, 2797940), (10, 2518146), (12, 2098455), (15, 1678764), (18, 1398970), (19, 1325340), (20, 1259073), (30, 839382), (36, 699485), (37, 680580), (38, 662670), (45, 559588), (57, 441780), (60, 419691), (74, 340290), (76, 331335), (90, 279794), (95, 265068), (111, 226860), (114, 220890), (148, 170145), (171, 147260), (180, 139897), (185, 136116), (190, 132534), (199, 126540), (222, 113430), (228, 110445), (285, 88356), (333, 75620), (342, 73630), (370, 68058), (380, 66267), (398, 63270), (444, 56715), (555, 45372), (570, 44178), (597, 42180), (666, 37810), (684, 36815), (703, 35820), (740, 34029), (796, 31635), (855, 29452), (995, 25308), (1110, 22686), (1140, 22089), (1194, 21090), (1332, 18905), (1406, 17910), (1665, 15124), (1710, 14726), (1791, 14060), (1990, 12654), (2109, 11940), (2220, 11343), (2388, 10545), (2812, 8955), (2985, 8436), (3330, 7562), (3420, 7363), (3515, 7164), (3582, 7030), (3781, 6660), (3980, 6327), (4218, 5970)]