28091880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2$

素因数の和:113

約数の個数: 192

約数和(自身を含む): 101304000

約数和(自身を除く): 73212120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 37, 38, 40, 45, 54, 57, 60, 72, 74, 76, 90, 95, 108, 111, 114, 120, 135, 148, 152, 171, 180, 185, 190, 216, 222, 228, 270, 285, 296, 333, 342, 360, 370, 380, 444, 456, 513, 540, 555, 570, 666, 684, 703, 740, 760, 855, 888, 999, 1026, 1080, 1110, 1140, 1332, 1368, 1369, 1406, 1480, 1665, 1710, 1998, 2052, 2109, 2220, 2280, 2565, 2664, 2738, 2812, 3330, 3420, 3515, 3996, 4104, 4107, 4218, 4440, 4995, 5130, 5476, 5624, 6327, 6660, 6840, 6845, 7030, 7992, 8214, 8436, 9990, 10260, 10545, 10952, 12321, 12654, 13320, 13690, 14060, 16428, 16872, 18981, 19980, 20520, 20535, 21090, 24642, 25308, 26011, 27380, 28120, 31635, 32856, 36963, 37962, 39960, 41070, 42180, 49284, 50616, 52022, 54760, 61605, 63270, 73926, 75924, 78033, 82140, 84360, 94905, 98568, 104044, 123210, 126540, 130055, 147852, 151848, 156066, 164280, 184815, 189810, 208088, 234099, 246420, 253080, 260110, 295704, 312132, 369630, 379620, 390165, 468198, 492840, 520220, 624264, 702297, 739260, 759240, 780330, 936396, 1040440, 1170495, 1404594, 1478520, 1560660, 1872792, 2340990, 2809188, 3121320, 3511485, 4681980, 5618376, 7022970, 9363960, 14045940, 28091880]

約数ペア:

[(1, 28091880), (2, 14045940), (3, 9363960), (4, 7022970), (5, 5618376), (6, 4681980), (8, 3511485), (9, 3121320), (10, 2809188), (12, 2340990), (15, 1872792), (18, 1560660), (19, 1478520), (20, 1404594), (24, 1170495), (27, 1040440), (30, 936396), (36, 780330), (37, 759240), (38, 739260), (40, 702297), (45, 624264), (54, 520220), (57, 492840), (60, 468198), (72, 390165), (74, 379620), (76, 369630), (90, 312132), (95, 295704), (108, 260110), (111, 253080), (114, 246420), (120, 234099), (135, 208088), (148, 189810), (152, 184815), (171, 164280), (180, 156066), (185, 151848), (190, 147852), (216, 130055), (222, 126540), (228, 123210), (270, 104044), (285, 98568), (296, 94905), (333, 84360), (342, 82140), (360, 78033), (370, 75924), (380, 73926), (444, 63270), (456, 61605), (513, 54760), (540, 52022), (555, 50616), (570, 49284), (666, 42180), (684, 41070), (703, 39960), (740, 37962), (760, 36963), (855, 32856), (888, 31635), (999, 28120), (1026, 27380), (1080, 26011), (1110, 25308), (1140, 24642), (1332, 21090), (1368, 20535), (1369, 20520), (1406, 19980), (1480, 18981), (1665, 16872), (1710, 16428), (1998, 14060), (2052, 13690), (2109, 13320), (2220, 12654), (2280, 12321), (2565, 10952), (2664, 10545), (2738, 10260), (2812, 9990), (3330, 8436), (3420, 8214), (3515, 7992), (3996, 7030), (4104, 6845), (4107, 6840), (4218, 6660), (4440, 6327), (4995, 5624), (5130, 5476)]