261659340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:416

約数の個数: 144

約数和(自身を含む): 819891072

約数和(自身を除く): 558231732

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 157, 180, 188, 197, 235, 282, 314, 394, 423, 470, 471, 564, 591, 628, 705, 785, 788, 846, 940, 942, 985, 1182, 1410, 1413, 1570, 1692, 1773, 1884, 1970, 2115, 2355, 2364, 2820, 2826, 2955, 3140, 3546, 3940, 4230, 4710, 5652, 5910, 7065, 7092, 7379, 8460, 8865, 9259, 9420, 11820, 14130, 14758, 17730, 18518, 22137, 27777, 28260, 29516, 30929, 35460, 36895, 37036, 44274, 46295, 55554, 61858, 66411, 73790, 83331, 88548, 92590, 92787, 110685, 111108, 123716, 132822, 138885, 147580, 154645, 166662, 185180, 185574, 221370, 265644, 277770, 278361, 309290, 332055, 333324, 371148, 416655, 442740, 463935, 555540, 556722, 618580, 664110, 833310, 927870, 1113444, 1328220, 1391805, 1453663, 1666620, 1855740, 2783610, 2907326, 4360989, 5567220, 5814652, 7268315, 8721978, 13082967, 14536630, 17443956, 21804945, 26165934, 29073260, 43609890, 52331868, 65414835, 87219780, 130829670, 261659340]

約数ペア:

[(1, 261659340), (2, 130829670), (3, 87219780), (4, 65414835), (5, 52331868), (6, 43609890), (9, 29073260), (10, 26165934), (12, 21804945), (15, 17443956), (18, 14536630), (20, 13082967), (30, 8721978), (36, 7268315), (45, 5814652), (47, 5567220), (60, 4360989), (90, 2907326), (94, 2783610), (141, 1855740), (157, 1666620), (180, 1453663), (188, 1391805), (197, 1328220), (235, 1113444), (282, 927870), (314, 833310), (394, 664110), (423, 618580), (470, 556722), (471, 555540), (564, 463935), (591, 442740), (628, 416655), (705, 371148), (785, 333324), (788, 332055), (846, 309290), (940, 278361), (942, 277770), (985, 265644), (1182, 221370), (1410, 185574), (1413, 185180), (1570, 166662), (1692, 154645), (1773, 147580), (1884, 138885), (1970, 132822), (2115, 123716), (2355, 111108), (2364, 110685), (2820, 92787), (2826, 92590), (2955, 88548), (3140, 83331), (3546, 73790), (3940, 66411), (4230, 61858), (4710, 55554), (5652, 46295), (5910, 44274), (7065, 37036), (7092, 36895), (7379, 35460), (8460, 30929), (8865, 29516), (9259, 28260), (9420, 27777), (11820, 22137), (14130, 18518), (14758, 17730)]