205847720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1\times {\mathrm{787}}^1$

素因数の和:1314

約数の個数: 64

約数和(自身を含む): 500411520

約数和(自身を除く): 294563800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 503, 520, 787, 1006, 1574, 2012, 2515, 3148, 3935, 4024, 5030, 6296, 6539, 7870, 10060, 10231, 13078, 15740, 20120, 20462, 26156, 31480, 32695, 40924, 51155, 52312, 65390, 81848, 102310, 130780, 204620, 261560, 395861, 409240, 791722, 1583444, 1979305, 3166888, 3958610, 5146193, 7917220, 10292386, 15834440, 20584772, 25730965, 41169544, 51461930, 102923860, 205847720]

約数ペア:

[(1, 205847720), (2, 102923860), (4, 51461930), (5, 41169544), (8, 25730965), (10, 20584772), (13, 15834440), (20, 10292386), (26, 7917220), (40, 5146193), (52, 3958610), (65, 3166888), (104, 1979305), (130, 1583444), (260, 791722), (503, 409240), (520, 395861), (787, 261560), (1006, 204620), (1574, 130780), (2012, 102310), (2515, 81848), (3148, 65390), (3935, 52312), (4024, 51155), (5030, 40924), (6296, 32695), (6539, 31480), (7870, 26156), (10060, 20462), (10231, 20120), (13078, 15740)]