205320420

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{83}}^1\times {\mathrm{509}}^1$

素因数の和:616

約数の個数: 144

約数和(自身を含む): 654937920

約数和(自身を除く): 449617500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 83, 90, 108, 135, 162, 166, 180, 243, 249, 270, 324, 332, 405, 415, 486, 498, 509, 540, 747, 810, 830, 972, 996, 1018, 1215, 1245, 1494, 1527, 1620, 1660, 2036, 2241, 2430, 2490, 2545, 2988, 3054, 3735, 4482, 4581, 4860, 4980, 5090, 6108, 6723, 7470, 7635, 8964, 9162, 10180, 11205, 13446, 13743, 14940, 15270, 18324, 20169, 22410, 22905, 26892, 27486, 30540, 33615, 40338, 41229, 42247, 44820, 45810, 54972, 67230, 68715, 80676, 82458, 84494, 91620, 100845, 123687, 126741, 134460, 137430, 164916, 168988, 201690, 206145, 211235, 247374, 253482, 274860, 380223, 403380, 412290, 422470, 494748, 506964, 618435, 633705, 760446, 824580, 844940, 1140669, 1236870, 1267410, 1520892, 1901115, 2281338, 2473740, 2534820, 3422007, 3802230, 4562676, 5703345, 6844014, 7604460, 10266021, 11406690, 13688028, 17110035, 20532042, 22813380, 34220070, 41064084, 51330105, 68440140, 102660210, 205320420]

約数ペア:

[(1, 205320420), (2, 102660210), (3, 68440140), (4, 51330105), (5, 41064084), (6, 34220070), (9, 22813380), (10, 20532042), (12, 17110035), (15, 13688028), (18, 11406690), (20, 10266021), (27, 7604460), (30, 6844014), (36, 5703345), (45, 4562676), (54, 3802230), (60, 3422007), (81, 2534820), (83, 2473740), (90, 2281338), (108, 1901115), (135, 1520892), (162, 1267410), (166, 1236870), (180, 1140669), (243, 844940), (249, 824580), (270, 760446), (324, 633705), (332, 618435), (405, 506964), (415, 494748), (486, 422470), (498, 412290), (509, 403380), (540, 380223), (747, 274860), (810, 253482), (830, 247374), (972, 211235), (996, 206145), (1018, 201690), (1215, 168988), (1245, 164916), (1494, 137430), (1527, 134460), (1620, 126741), (1660, 123687), (2036, 100845), (2241, 91620), (2430, 84494), (2490, 82458), (2545, 80676), (2988, 68715), (3054, 67230), (3735, 54972), (4482, 45810), (4581, 44820), (4860, 42247), (4980, 41229), (5090, 40338), (6108, 33615), (6723, 30540), (7470, 27486), (7635, 26892), (8964, 22905), (9162, 22410), (10180, 20169), (11205, 18324), (13446, 15270), (13743, 14940)]