199986780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1319}}^1$

素因数の和:1376

約数の個数: 144

約数和(自身を含む): 675924480

約数和(自身を除く): 475937700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 361, 380, 399, 420, 532, 570, 665, 722, 798, 1083, 1140, 1319, 1330, 1444, 1596, 1805, 1995, 2166, 2527, 2638, 2660, 3610, 3957, 3990, 4332, 5054, 5276, 5415, 6595, 7220, 7581, 7914, 7980, 9233, 10108, 10830, 12635, 13190, 15162, 15828, 18466, 19785, 21660, 25061, 25270, 26380, 27699, 30324, 36932, 37905, 39570, 46165, 50122, 50540, 55398, 75183, 75810, 79140, 92330, 100244, 110796, 125305, 138495, 150366, 151620, 175427, 184660, 250610, 276990, 300732, 350854, 375915, 476159, 501220, 526281, 553980, 701708, 751830, 877135, 952318, 1052562, 1428477, 1503660, 1754270, 1904636, 2105124, 2380795, 2631405, 2856954, 3333113, 3508540, 4761590, 5262810, 5713908, 6666226, 7142385, 9523180, 9999339, 10525620, 13332452, 14284770, 16665565, 19998678, 28569540, 33331130, 39997356, 49996695, 66662260, 99993390, 199986780]

約数ペア:

[(1, 199986780), (2, 99993390), (3, 66662260), (4, 49996695), (5, 39997356), (6, 33331130), (7, 28569540), (10, 19998678), (12, 16665565), (14, 14284770), (15, 13332452), (19, 10525620), (20, 9999339), (21, 9523180), (28, 7142385), (30, 6666226), (35, 5713908), (38, 5262810), (42, 4761590), (57, 3508540), (60, 3333113), (70, 2856954), (76, 2631405), (84, 2380795), (95, 2105124), (105, 1904636), (114, 1754270), (133, 1503660), (140, 1428477), (190, 1052562), (210, 952318), (228, 877135), (266, 751830), (285, 701708), (361, 553980), (380, 526281), (399, 501220), (420, 476159), (532, 375915), (570, 350854), (665, 300732), (722, 276990), (798, 250610), (1083, 184660), (1140, 175427), (1319, 151620), (1330, 150366), (1444, 138495), (1596, 125305), (1805, 110796), (1995, 100244), (2166, 92330), (2527, 79140), (2638, 75810), (2660, 75183), (3610, 55398), (3957, 50540), (3990, 50122), (4332, 46165), (5054, 39570), (5276, 37905), (5415, 36932), (6595, 30324), (7220, 27699), (7581, 26380), (7914, 25270), (7980, 25061), (9233, 21660), (10108, 19785), (10830, 18466), (12635, 15828), (13190, 15162)]