18519840

素因数分解:

$2^5\times 3^4\times 5^1\times {\mathrm{1429}}^1$

素因数の和:1456

約数の個数: 120

約数和(自身を含む): 65405340

約数和(自身を除く): 46885500

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1429, 1440, 1620, 2160, 2592, 2858, 3240, 4287, 4320, 5716, 6480, 7145, 8574, 11432, 12861, 12960, 14290, 17148, 21435, 22864, 25722, 28580, 34296, 38583, 42870, 45728, 51444, 57160, 64305, 68592, 77166, 85740, 102888, 114320, 115749, 128610, 137184, 154332, 171480, 192915, 205776, 228640, 231498, 257220, 308664, 342960, 385830, 411552, 462996, 514440, 578745, 617328, 685920, 771660, 925992, 1028880, 1157490, 1234656, 1543320, 1851984, 2057760, 2314980, 3086640, 3703968, 4629960, 6173280, 9259920, 18519840]

約数ペア:

[(1, 18519840), (2, 9259920), (3, 6173280), (4, 4629960), (5, 3703968), (6, 3086640), (8, 2314980), (9, 2057760), (10, 1851984), (12, 1543320), (15, 1234656), (16, 1157490), (18, 1028880), (20, 925992), (24, 771660), (27, 685920), (30, 617328), (32, 578745), (36, 514440), (40, 462996), (45, 411552), (48, 385830), (54, 342960), (60, 308664), (72, 257220), (80, 231498), (81, 228640), (90, 205776), (96, 192915), (108, 171480), (120, 154332), (135, 137184), (144, 128610), (160, 115749), (162, 114320), (180, 102888), (216, 85740), (240, 77166), (270, 68592), (288, 64305), (324, 57160), (360, 51444), (405, 45728), (432, 42870), (480, 38583), (540, 34296), (648, 28580), (720, 25722), (810, 22864), (864, 21435), (1080, 17148), (1296, 14290), (1429, 12960), (1440, 12861), (1620, 11432), (2160, 8574), (2592, 7145), (2858, 6480), (3240, 5716), (4287, 4320)]