1999849672

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1\times {\mathrm{409}}^1$

素因数の和:818

約数の個数: 64

約数和(自身を含む): 4022838000

約数和(自身を除く): 2022988328

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157, 229, 314, 409, 458, 628, 818, 916, 1256, 1636, 1832, 2669, 3272, 3893, 5338, 6953, 7786, 10676, 13906, 15572, 21352, 27812, 31144, 35953, 55624, 64213, 71906, 93661, 128426, 143812, 187322, 256852, 287624, 374644, 513704, 611201, 749288, 1091621, 1222402, 1592237, 2183242, 2444804, 3184474, 4366484, 4889608, 6368948, 8732968, 12737896, 14704777, 29409554, 58819108, 117638216, 249981209, 499962418, 999924836, 1999849672]

約数ペア:

[(1, 1999849672), (2, 999924836), (4, 499962418), (8, 249981209), (17, 117638216), (34, 58819108), (68, 29409554), (136, 14704777), (157, 12737896), (229, 8732968), (314, 6368948), (409, 4889608), (458, 4366484), (628, 3184474), (818, 2444804), (916, 2183242), (1256, 1592237), (1636, 1222402), (1832, 1091621), (2669, 749288), (3272, 611201), (3893, 513704), (5338, 374644), (6953, 287624), (7786, 256852), (10676, 187322), (13906, 143812), (15572, 128426), (21352, 93661), (27812, 71906), (31144, 64213), (35953, 55624)]