18844840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:179

約数の個数: 128

約数和(自身を含む): 53187840

約数和(自身を除く): 34343000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 37, 40, 56, 68, 70, 74, 85, 107, 119, 136, 140, 148, 170, 185, 214, 238, 259, 280, 296, 340, 370, 428, 476, 518, 535, 595, 629, 680, 740, 749, 856, 952, 1036, 1070, 1190, 1258, 1295, 1480, 1498, 1819, 2072, 2140, 2380, 2516, 2590, 2996, 3145, 3638, 3745, 3959, 4280, 4403, 4760, 5032, 5180, 5992, 6290, 7276, 7490, 7918, 8806, 9095, 10360, 12580, 12733, 14552, 14980, 15836, 17612, 18190, 19795, 22015, 25160, 25466, 27713, 29960, 31672, 35224, 36380, 39590, 44030, 50932, 55426, 63665, 67303, 72760, 79180, 88060, 101864, 110852, 127330, 134606, 138565, 158360, 176120, 221704, 254660, 269212, 277130, 336515, 471121, 509320, 538424, 554260, 673030, 942242, 1108520, 1346060, 1884484, 2355605, 2692120, 3768968, 4711210, 9422420, 18844840]

約数ペア:

[(1, 18844840), (2, 9422420), (4, 4711210), (5, 3768968), (7, 2692120), (8, 2355605), (10, 1884484), (14, 1346060), (17, 1108520), (20, 942242), (28, 673030), (34, 554260), (35, 538424), (37, 509320), (40, 471121), (56, 336515), (68, 277130), (70, 269212), (74, 254660), (85, 221704), (107, 176120), (119, 158360), (136, 138565), (140, 134606), (148, 127330), (170, 110852), (185, 101864), (214, 88060), (238, 79180), (259, 72760), (280, 67303), (296, 63665), (340, 55426), (370, 50932), (428, 44030), (476, 39590), (518, 36380), (535, 35224), (595, 31672), (629, 29960), (680, 27713), (740, 25466), (749, 25160), (856, 22015), (952, 19795), (1036, 18190), (1070, 17612), (1190, 15836), (1258, 14980), (1295, 14552), (1480, 12733), (1498, 12580), (1819, 10360), (2072, 9095), (2140, 8806), (2380, 7918), (2516, 7490), (2590, 7276), (2996, 6290), (3145, 5992), (3638, 5180), (3745, 5032), (3959, 4760), (4280, 4403)]