28907280

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{1487}}^1$

素因数の和:1515

約数の個数: 120

約数和(自身を含む): 100743552

約数和(自身を除く): 71836272

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 648, 720, 810, 972, 1080, 1215, 1296, 1487, 1620, 1944, 2160, 2430, 2974, 3240, 3888, 4461, 4860, 5948, 6480, 7435, 8922, 9720, 11896, 13383, 14870, 17844, 19440, 22305, 23792, 26766, 29740, 35688, 40149, 44610, 53532, 59480, 66915, 71376, 80298, 89220, 107064, 118960, 120447, 133830, 160596, 178440, 200745, 214128, 240894, 267660, 321192, 356880, 361341, 401490, 481788, 535320, 602235, 642384, 722682, 802980, 963576, 1070640, 1204470, 1445364, 1605960, 1806705, 1927152, 2408940, 2890728, 3211920, 3613410, 4817880, 5781456, 7226820, 9635760, 14453640, 28907280]

約数ペア:

[(1, 28907280), (2, 14453640), (3, 9635760), (4, 7226820), (5, 5781456), (6, 4817880), (8, 3613410), (9, 3211920), (10, 2890728), (12, 2408940), (15, 1927152), (16, 1806705), (18, 1605960), (20, 1445364), (24, 1204470), (27, 1070640), (30, 963576), (36, 802980), (40, 722682), (45, 642384), (48, 602235), (54, 535320), (60, 481788), (72, 401490), (80, 361341), (81, 356880), (90, 321192), (108, 267660), (120, 240894), (135, 214128), (144, 200745), (162, 178440), (180, 160596), (216, 133830), (240, 120447), (243, 118960), (270, 107064), (324, 89220), (360, 80298), (405, 71376), (432, 66915), (486, 59480), (540, 53532), (648, 44610), (720, 40149), (810, 35688), (972, 29740), (1080, 26766), (1215, 23792), (1296, 22305), (1487, 19440), (1620, 17844), (1944, 14870), (2160, 13383), (2430, 11896), (2974, 9720), (3240, 8922), (3888, 7435), (4461, 6480), (4860, 5948)]