646945380

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{179}}^1$

素因数の和:320

約数の個数: 240

約数和(自身を含む): 2151515520

約数和(自身を除く): 1504570140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 81, 90, 92, 97, 108, 115, 135, 138, 162, 179, 180, 194, 207, 230, 270, 276, 291, 324, 345, 358, 388, 405, 414, 460, 485, 537, 540, 582, 621, 690, 716, 810, 828, 873, 895, 970, 1035, 1074, 1164, 1242, 1380, 1455, 1611, 1620, 1746, 1790, 1863, 1940, 2070, 2148, 2231, 2484, 2619, 2685, 2910, 3105, 3222, 3492, 3580, 3726, 4117, 4140, 4365, 4462, 4833, 5238, 5370, 5820, 6210, 6444, 6693, 7452, 7857, 8055, 8234, 8730, 8924, 9315, 9666, 10476, 10740, 11155, 12351, 12420, 13095, 13386, 14499, 15714, 16110, 16468, 17363, 17460, 18630, 19332, 20079, 20585, 22310, 24165, 24702, 26190, 26772, 28998, 31428, 32220, 33465, 34726, 37053, 37260, 39285, 40158, 41170, 44620, 48330, 49404, 52089, 52380, 57996, 60237, 61755, 66930, 69452, 72495, 74106, 78570, 80316, 82340, 86815, 96660, 100395, 104178, 111159, 120474, 123510, 133860, 144990, 148212, 156267, 157140, 173630, 180711, 185265, 200790, 208356, 222318, 240948, 247020, 260445, 289980, 301185, 312534, 333477, 347260, 361422, 370530, 399349, 401580, 444636, 468801, 520890, 555795, 602370, 625068, 666954, 722844, 741060, 781335, 798698, 903555, 937602, 1041780, 1111590, 1198047, 1204740, 1333908, 1406403, 1562670, 1597396, 1667385, 1807110, 1875204, 1996745, 2223180, 2344005, 2396094, 2812806, 3125340, 3334770, 3594141, 3614220, 3993490, 4688010, 4792188, 5625612, 5990235, 6669540, 7032015, 7188282, 7986980, 9376020, 10782423, 11980470, 14064030, 14376564, 17970705, 21564846, 23960940, 28128060, 32347269, 35941410, 43129692, 53912115, 64694538, 71882820, 107824230, 129389076, 161736345, 215648460, 323472690, 646945380]

約数ペア:

[(1, 646945380), (2, 323472690), (3, 215648460), (4, 161736345), (5, 129389076), (6, 107824230), (9, 71882820), (10, 64694538), (12, 53912115), (15, 43129692), (18, 35941410), (20, 32347269), (23, 28128060), (27, 23960940), (30, 21564846), (36, 17970705), (45, 14376564), (46, 14064030), (54, 11980470), (60, 10782423), (69, 9376020), (81, 7986980), (90, 7188282), (92, 7032015), (97, 6669540), (108, 5990235), (115, 5625612), (135, 4792188), (138, 4688010), (162, 3993490), (179, 3614220), (180, 3594141), (194, 3334770), (207, 3125340), (230, 2812806), (270, 2396094), (276, 2344005), (291, 2223180), (324, 1996745), (345, 1875204), (358, 1807110), (388, 1667385), (405, 1597396), (414, 1562670), (460, 1406403), (485, 1333908), (537, 1204740), (540, 1198047), (582, 1111590), (621, 1041780), (690, 937602), (716, 903555), (810, 798698), (828, 781335), (873, 741060), (895, 722844), (970, 666954), (1035, 625068), (1074, 602370), (1164, 555795), (1242, 520890), (1380, 468801), (1455, 444636), (1611, 401580), (1620, 399349), (1746, 370530), (1790, 361422), (1863, 347260), (1940, 333477), (2070, 312534), (2148, 301185), (2231, 289980), (2484, 260445), (2619, 247020), (2685, 240948), (2910, 222318), (3105, 208356), (3222, 200790), (3492, 185265), (3580, 180711), (3726, 173630), (4117, 157140), (4140, 156267), (4365, 148212), (4462, 144990), (4833, 133860), (5238, 123510), (5370, 120474), (5820, 111159), (6210, 104178), (6444, 100395), (6693, 96660), (7452, 86815), (7857, 82340), (8055, 80316), (8234, 78570), (8730, 74106), (8924, 72495), (9315, 69452), (9666, 66930), (10476, 61755), (10740, 60237), (11155, 57996), (12351, 52380), (12420, 52089), (13095, 49404), (13386, 48330), (14499, 44620), (15714, 41170), (16110, 40158), (16468, 39285), (17363, 37260), (17460, 37053), (18630, 34726), (19332, 33465), (20079, 32220), (20585, 31428), (22310, 28998), (24165, 26772), (24702, 26190)]