261963540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1451}}^1$

素因数の和:1542

約数の個数: 144

約数和(自身を含む): 856215360

約数和(自身を除く): 594251820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 59, 60, 68, 85, 90, 102, 118, 153, 170, 177, 180, 204, 236, 255, 295, 306, 340, 354, 510, 531, 590, 612, 708, 765, 885, 1003, 1020, 1062, 1180, 1451, 1530, 1770, 2006, 2124, 2655, 2902, 3009, 3060, 3540, 4012, 4353, 5015, 5310, 5804, 6018, 7255, 8706, 9027, 10030, 10620, 12036, 13059, 14510, 15045, 17412, 18054, 20060, 21765, 24667, 26118, 29020, 30090, 36108, 43530, 45135, 49334, 52236, 60180, 65295, 74001, 85609, 87060, 90270, 98668, 123335, 130590, 148002, 171218, 180540, 222003, 246670, 256827, 261180, 296004, 342436, 370005, 428045, 444006, 493340, 513654, 740010, 770481, 856090, 888012, 1027308, 1110015, 1284135, 1455353, 1480020, 1540962, 1712180, 2220030, 2568270, 2910706, 3081924, 3852405, 4366059, 4440060, 5136540, 5821412, 7276765, 7704810, 8732118, 13098177, 14553530, 15409620, 17464236, 21830295, 26196354, 29107060, 43660590, 52392708, 65490885, 87321180, 130981770, 261963540]

約数ペア:

[(1, 261963540), (2, 130981770), (3, 87321180), (4, 65490885), (5, 52392708), (6, 43660590), (9, 29107060), (10, 26196354), (12, 21830295), (15, 17464236), (17, 15409620), (18, 14553530), (20, 13098177), (30, 8732118), (34, 7704810), (36, 7276765), (45, 5821412), (51, 5136540), (59, 4440060), (60, 4366059), (68, 3852405), (85, 3081924), (90, 2910706), (102, 2568270), (118, 2220030), (153, 1712180), (170, 1540962), (177, 1480020), (180, 1455353), (204, 1284135), (236, 1110015), (255, 1027308), (295, 888012), (306, 856090), (340, 770481), (354, 740010), (510, 513654), (531, 493340), (590, 444006), (612, 428045), (708, 370005), (765, 342436), (885, 296004), (1003, 261180), (1020, 256827), (1062, 246670), (1180, 222003), (1451, 180540), (1530, 171218), (1770, 148002), (2006, 130590), (2124, 123335), (2655, 98668), (2902, 90270), (3009, 87060), (3060, 85609), (3540, 74001), (4012, 65295), (4353, 60180), (5015, 52236), (5310, 49334), (5804, 45135), (6018, 43530), (7255, 36108), (8706, 30090), (9027, 29020), (10030, 26118), (10620, 24667), (12036, 21765), (13059, 20060), (14510, 18054), (15045, 17412)]