18903240

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{761}}^1$

素因数の和:804

約数の個数: 128

約数和(自身を含む): 65836800

約数和(自身を除く): 46933560

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 54, 60, 69, 72, 90, 92, 108, 115, 120, 135, 138, 180, 184, 207, 216, 230, 270, 276, 345, 360, 414, 460, 540, 552, 621, 690, 761, 828, 920, 1035, 1080, 1242, 1380, 1522, 1656, 2070, 2283, 2484, 2760, 3044, 3105, 3805, 4140, 4566, 4968, 6088, 6210, 6849, 7610, 8280, 9132, 11415, 12420, 13698, 15220, 17503, 18264, 20547, 22830, 24840, 27396, 30440, 34245, 35006, 41094, 45660, 52509, 54792, 68490, 70012, 82188, 87515, 91320, 102735, 105018, 136980, 140024, 157527, 164376, 175030, 205470, 210036, 262545, 273960, 315054, 350060, 410940, 420072, 472581, 525090, 630108, 700120, 787635, 821880, 945162, 1050180, 1260216, 1575270, 1890324, 2100360, 2362905, 3150540, 3780648, 4725810, 6301080, 9451620, 18903240]

約数ペア:

[(1, 18903240), (2, 9451620), (3, 6301080), (4, 4725810), (5, 3780648), (6, 3150540), (8, 2362905), (9, 2100360), (10, 1890324), (12, 1575270), (15, 1260216), (18, 1050180), (20, 945162), (23, 821880), (24, 787635), (27, 700120), (30, 630108), (36, 525090), (40, 472581), (45, 420072), (46, 410940), (54, 350060), (60, 315054), (69, 273960), (72, 262545), (90, 210036), (92, 205470), (108, 175030), (115, 164376), (120, 157527), (135, 140024), (138, 136980), (180, 105018), (184, 102735), (207, 91320), (216, 87515), (230, 82188), (270, 70012), (276, 68490), (345, 54792), (360, 52509), (414, 45660), (460, 41094), (540, 35006), (552, 34245), (621, 30440), (690, 27396), (761, 24840), (828, 22830), (920, 20547), (1035, 18264), (1080, 17503), (1242, 15220), (1380, 13698), (1522, 12420), (1656, 11415), (2070, 9132), (2283, 8280), (2484, 7610), (2760, 6849), (3044, 6210), (3105, 6088), (3805, 4968), (4140, 4566)]