406530180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{18979}}^1$

素因数の和:19018

約数の個数: 144

約数和(自身を含む): 1492283520

約数和(自身を除く): 1085753340

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 51, 60, 63, 68, 70, 84, 85, 90, 102, 105, 119, 126, 140, 153, 170, 180, 204, 210, 238, 252, 255, 306, 315, 340, 357, 420, 476, 510, 595, 612, 630, 714, 765, 1020, 1071, 1190, 1260, 1428, 1530, 1785, 2142, 2380, 3060, 3570, 4284, 5355, 7140, 10710, 18979, 21420, 37958, 56937, 75916, 94895, 113874, 132853, 170811, 189790, 227748, 265706, 284685, 322643, 341622, 379580, 398559, 531412, 569370, 645286, 664265, 683244, 797118, 854055, 967929, 1138740, 1195677, 1290572, 1328530, 1594236, 1613215, 1708110, 1935858, 1992795, 2258501, 2391354, 2657060, 2903787, 3226430, 3416220, 3871716, 3985590, 4517002, 4782708, 4839645, 5807574, 5978385, 6452860, 6775503, 7971180, 9034004, 9679290, 11292505, 11615148, 11956770, 13551006, 14518935, 19358580, 20326509, 22585010, 23913540, 27102012, 29037870, 33877515, 40653018, 45170020, 58075740, 67755030, 81306036, 101632545, 135510060, 203265090, 406530180]

約数ペア:

[(1, 406530180), (2, 203265090), (3, 135510060), (4, 101632545), (5, 81306036), (6, 67755030), (7, 58075740), (9, 45170020), (10, 40653018), (12, 33877515), (14, 29037870), (15, 27102012), (17, 23913540), (18, 22585010), (20, 20326509), (21, 19358580), (28, 14518935), (30, 13551006), (34, 11956770), (35, 11615148), (36, 11292505), (42, 9679290), (45, 9034004), (51, 7971180), (60, 6775503), (63, 6452860), (68, 5978385), (70, 5807574), (84, 4839645), (85, 4782708), (90, 4517002), (102, 3985590), (105, 3871716), (119, 3416220), (126, 3226430), (140, 2903787), (153, 2657060), (170, 2391354), (180, 2258501), (204, 1992795), (210, 1935858), (238, 1708110), (252, 1613215), (255, 1594236), (306, 1328530), (315, 1290572), (340, 1195677), (357, 1138740), (420, 967929), (476, 854055), (510, 797118), (595, 683244), (612, 664265), (630, 645286), (714, 569370), (765, 531412), (1020, 398559), (1071, 379580), (1190, 341622), (1260, 322643), (1428, 284685), (1530, 265706), (1785, 227748), (2142, 189790), (2380, 170811), (3060, 132853), (3570, 113874), (4284, 94895), (5355, 75916), (7140, 56937), (10710, 37958), (18979, 21420)]