638281620

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:252

約数の個数: 240

約数和(自身を含む): 2090043648

約数和(自身を除く): 1451762028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 47, 54, 60, 81, 83, 90, 94, 101, 108, 135, 141, 162, 166, 180, 188, 202, 235, 249, 270, 282, 303, 324, 332, 404, 405, 415, 423, 470, 498, 505, 540, 564, 606, 705, 747, 810, 830, 846, 909, 940, 996, 1010, 1212, 1245, 1269, 1410, 1494, 1515, 1620, 1660, 1692, 1818, 2020, 2115, 2241, 2490, 2538, 2727, 2820, 2988, 3030, 3636, 3735, 3807, 3901, 4230, 4482, 4545, 4747, 4980, 5076, 5454, 6060, 6345, 6723, 7470, 7614, 7802, 8181, 8383, 8460, 8964, 9090, 9494, 10908, 11205, 11703, 12690, 13446, 13635, 14241, 14940, 15228, 15604, 16362, 16766, 18180, 18988, 19035, 19505, 22410, 23406, 23735, 25149, 25380, 26892, 27270, 28482, 32724, 33532, 33615, 35109, 38070, 39010, 40905, 41915, 42723, 44820, 46812, 47470, 50298, 54540, 56964, 58515, 67230, 70218, 71205, 75447, 76140, 78020, 81810, 83830, 85446, 94940, 100596, 105327, 117030, 125745, 128169, 134460, 140436, 142410, 150894, 163620, 167660, 170892, 175545, 210654, 213615, 226341, 234060, 251490, 256338, 284820, 301788, 315981, 351090, 377235, 384507, 394001, 421308, 427230, 452682, 502980, 512676, 526635, 631962, 640845, 679023, 702180, 754470, 769014, 788002, 854460, 905364, 1053270, 1131705, 1182003, 1263924, 1281690, 1358046, 1508940, 1538028, 1576004, 1579905, 1922535, 1970005, 2106540, 2263410, 2364006, 2563380, 2716092, 3159810, 3395115, 3546009, 3845070, 3940010, 4526820, 4728012, 5910015, 6319620, 6790230, 7092018, 7690140, 7880020, 10638027, 11820030, 13580460, 14184036, 17730045, 21276054, 23640060, 31914081, 35460090, 42552108, 53190135, 63828162, 70920180, 106380270, 127656324, 159570405, 212760540, 319140810, 638281620]

約数ペア:

[(1, 638281620), (2, 319140810), (3, 212760540), (4, 159570405), (5, 127656324), (6, 106380270), (9, 70920180), (10, 63828162), (12, 53190135), (15, 42552108), (18, 35460090), (20, 31914081), (27, 23640060), (30, 21276054), (36, 17730045), (45, 14184036), (47, 13580460), (54, 11820030), (60, 10638027), (81, 7880020), (83, 7690140), (90, 7092018), (94, 6790230), (101, 6319620), (108, 5910015), (135, 4728012), (141, 4526820), (162, 3940010), (166, 3845070), (180, 3546009), (188, 3395115), (202, 3159810), (235, 2716092), (249, 2563380), (270, 2364006), (282, 2263410), (303, 2106540), (324, 1970005), (332, 1922535), (404, 1579905), (405, 1576004), (415, 1538028), (423, 1508940), (470, 1358046), (498, 1281690), (505, 1263924), (540, 1182003), (564, 1131705), (606, 1053270), (705, 905364), (747, 854460), (810, 788002), (830, 769014), (846, 754470), (909, 702180), (940, 679023), (996, 640845), (1010, 631962), (1212, 526635), (1245, 512676), (1269, 502980), (1410, 452682), (1494, 427230), (1515, 421308), (1620, 394001), (1660, 384507), (1692, 377235), (1818, 351090), (2020, 315981), (2115, 301788), (2241, 284820), (2490, 256338), (2538, 251490), (2727, 234060), (2820, 226341), (2988, 213615), (3030, 210654), (3636, 175545), (3735, 170892), (3807, 167660), (3901, 163620), (4230, 150894), (4482, 142410), (4545, 140436), (4747, 134460), (4980, 128169), (5076, 125745), (5454, 117030), (6060, 105327), (6345, 100596), (6723, 94940), (7470, 85446), (7614, 83830), (7802, 81810), (8181, 78020), (8383, 76140), (8460, 75447), (8964, 71205), (9090, 70218), (9494, 67230), (10908, 58515), (11205, 56964), (11703, 54540), (12690, 50298), (13446, 47470), (13635, 46812), (14241, 44820), (14940, 42723), (15228, 41915), (15604, 40905), (16362, 39010), (16766, 38070), (18180, 35109), (18988, 33615), (19035, 33532), (19505, 32724), (22410, 28482), (23406, 27270), (23735, 26892), (25149, 25380)]