28565550

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:307

約数の個数: 144

約数和(自身を含む): 87338160

約数和(自身を除く): 58772610

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 19, 25, 26, 30, 38, 39, 45, 50, 57, 65, 75, 78, 90, 95, 114, 117, 130, 150, 171, 190, 195, 225, 234, 247, 257, 285, 325, 342, 390, 450, 475, 494, 514, 570, 585, 650, 741, 771, 855, 950, 975, 1170, 1235, 1285, 1425, 1482, 1542, 1710, 1950, 2223, 2313, 2470, 2570, 2850, 2925, 3341, 3705, 3855, 4275, 4446, 4626, 4883, 5850, 6175, 6425, 6682, 7410, 7710, 8550, 9766, 10023, 11115, 11565, 12350, 12850, 14649, 16705, 18525, 19275, 20046, 22230, 23130, 24415, 29298, 30069, 33410, 37050, 38550, 43947, 48830, 50115, 55575, 57825, 60138, 63479, 73245, 83525, 87894, 100230, 111150, 115650, 122075, 126958, 146490, 150345, 167050, 190437, 219735, 244150, 250575, 300690, 317395, 366225, 380874, 439470, 501150, 571311, 634790, 732450, 751725, 952185, 1098675, 1142622, 1503450, 1586975, 1904370, 2197350, 2856555, 3173950, 4760925, 5713110, 9521850, 14282775, 28565550]

約数ペア:

[(1, 28565550), (2, 14282775), (3, 9521850), (5, 5713110), (6, 4760925), (9, 3173950), (10, 2856555), (13, 2197350), (15, 1904370), (18, 1586975), (19, 1503450), (25, 1142622), (26, 1098675), (30, 952185), (38, 751725), (39, 732450), (45, 634790), (50, 571311), (57, 501150), (65, 439470), (75, 380874), (78, 366225), (90, 317395), (95, 300690), (114, 250575), (117, 244150), (130, 219735), (150, 190437), (171, 167050), (190, 150345), (195, 146490), (225, 126958), (234, 122075), (247, 115650), (257, 111150), (285, 100230), (325, 87894), (342, 83525), (390, 73245), (450, 63479), (475, 60138), (494, 57825), (514, 55575), (570, 50115), (585, 48830), (650, 43947), (741, 38550), (771, 37050), (855, 33410), (950, 30069), (975, 29298), (1170, 24415), (1235, 23130), (1285, 22230), (1425, 20046), (1482, 19275), (1542, 18525), (1710, 16705), (1950, 14649), (2223, 12850), (2313, 12350), (2470, 11565), (2570, 11115), (2850, 10023), (2925, 9766), (3341, 8550), (3705, 7710), (3855, 7410), (4275, 6682), (4446, 6425), (4626, 6175), (4883, 5850)]