261879480

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{617}}^1$

素因数の和:771

約数の個数: 160

約数和(自身を含む): 888362640

約数和(自身を除く): 626483160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 131, 135, 162, 180, 216, 262, 270, 324, 360, 393, 405, 524, 540, 617, 648, 655, 786, 810, 1048, 1080, 1179, 1234, 1310, 1572, 1620, 1851, 1965, 2358, 2468, 2620, 3085, 3144, 3240, 3537, 3702, 3930, 4716, 4936, 5240, 5553, 5895, 6170, 7074, 7404, 7860, 9255, 9432, 10611, 11106, 11790, 12340, 14148, 14808, 15720, 16659, 17685, 18510, 21222, 22212, 23580, 24680, 27765, 28296, 33318, 35370, 37020, 42444, 44424, 47160, 49977, 53055, 55530, 66636, 70740, 74040, 80827, 83295, 84888, 99954, 106110, 111060, 133272, 141480, 161654, 166590, 199908, 212220, 222120, 242481, 249885, 323308, 333180, 399816, 404135, 424440, 484962, 499770, 646616, 666360, 727443, 808270, 969924, 999540, 1212405, 1454886, 1616540, 1939848, 1999080, 2182329, 2424810, 2909772, 3233080, 3637215, 4364658, 4849620, 5819544, 6546987, 7274430, 8729316, 9699240, 10911645, 13093974, 14548860, 17458632, 21823290, 26187948, 29097720, 32734935, 43646580, 52375896, 65469870, 87293160, 130939740, 261879480]

約数ペア:

[(1, 261879480), (2, 130939740), (3, 87293160), (4, 65469870), (5, 52375896), (6, 43646580), (8, 32734935), (9, 29097720), (10, 26187948), (12, 21823290), (15, 17458632), (18, 14548860), (20, 13093974), (24, 10911645), (27, 9699240), (30, 8729316), (36, 7274430), (40, 6546987), (45, 5819544), (54, 4849620), (60, 4364658), (72, 3637215), (81, 3233080), (90, 2909772), (108, 2424810), (120, 2182329), (131, 1999080), (135, 1939848), (162, 1616540), (180, 1454886), (216, 1212405), (262, 999540), (270, 969924), (324, 808270), (360, 727443), (393, 666360), (405, 646616), (524, 499770), (540, 484962), (617, 424440), (648, 404135), (655, 399816), (786, 333180), (810, 323308), (1048, 249885), (1080, 242481), (1179, 222120), (1234, 212220), (1310, 199908), (1572, 166590), (1620, 161654), (1851, 141480), (1965, 133272), (2358, 111060), (2468, 106110), (2620, 99954), (3085, 84888), (3144, 83295), (3240, 80827), (3537, 74040), (3702, 70740), (3930, 66636), (4716, 55530), (4936, 53055), (5240, 49977), (5553, 47160), (5895, 44424), (6170, 42444), (7074, 37020), (7404, 35370), (7860, 33318), (9255, 28296), (9432, 27765), (10611, 24680), (11106, 23580), (11790, 22212), (12340, 21222), (14148, 18510), (14808, 17685), (15720, 16659)]