821997720

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{253703}}^1$

素因数の和:253726

約数の個数: 80

約数和(自身を含む): 2762836560

約数和(自身を除く): 1940838840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 405, 540, 648, 810, 1080, 1620, 3240, 253703, 507406, 761109, 1014812, 1268515, 1522218, 2029624, 2283327, 2537030, 3044436, 3805545, 4566654, 5074060, 6088872, 6849981, 7611090, 9133308, 10148120, 11416635, 13699962, 15222180, 18266616, 20549943, 22833270, 27399924, 30444360, 34249905, 41099886, 45666540, 54799848, 68499810, 82199772, 91333080, 102749715, 136999620, 164399544, 205499430, 273999240, 410998860, 821997720]

約数ペア:

[(1, 821997720), (2, 410998860), (3, 273999240), (4, 205499430), (5, 164399544), (6, 136999620), (8, 102749715), (9, 91333080), (10, 82199772), (12, 68499810), (15, 54799848), (18, 45666540), (20, 41099886), (24, 34249905), (27, 30444360), (30, 27399924), (36, 22833270), (40, 20549943), (45, 18266616), (54, 15222180), (60, 13699962), (72, 11416635), (81, 10148120), (90, 9133308), (108, 7611090), (120, 6849981), (135, 6088872), (162, 5074060), (180, 4566654), (216, 3805545), (270, 3044436), (324, 2537030), (360, 2283327), (405, 2029624), (540, 1522218), (648, 1268515), (810, 1014812), (1080, 761109), (1620, 507406), (3240, 253703)]