199917720

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{61703}}^1$

素因数の和:61726

約数の個数: 80

約数和(自身を含む): 671956560

約数和(自身を除く): 472038840

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, 61703, 123406, 185109, 246812, 308515, 370218, 493624, 555327, 617030, 740436, 925545, 1110654, 1234060, 1480872, 1665981, 1851090, 2221308, 2468120, 2776635, 3331962, 3702180, 4442616, 4997943, 5553270, 6663924, 7404360, 8329905, 9995886, 11106540, 13327848, 16659810, 19991772, 22213080, 24989715, 33319620, 39983544, 49979430, 66639240, 99958860, 199917720]

約数ペア:

[(1, 199917720), (2, 99958860), (3, 66639240), (4, 49979430), (5, 39983544), (6, 33319620), (8, 24989715), (9, 22213080), (10, 19991772), (12, 16659810), (15, 13327848), (18, 11106540), (20, 9995886), (24, 8329905), (27, 7404360), (30, 6663924), (36, 5553270), (40, 4997943), (45, 4442616), (54, 3702180), (60, 3331962), (72, 2776635), (81, 2468120), (90, 2221308), (108, 1851090), (120, 1665981), (135, 1480872), (162, 1234060), (180, 1110654), (216, 925545), (270, 740436), (324, 617030), (360, 555327), (405, 493624), (540, 370218), (648, 308515), (810, 246812), (1080, 185109), (1620, 123406), (3240, 61703)]