199920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1$

素因数の和:47

約数の個数: 120

約数和(自身を含む): 763344

約数和(自身を除く): 563424

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 48, 49, 51, 56, 60, 68, 70, 80, 84, 85, 98, 102, 105, 112, 119, 120, 136, 140, 147, 168, 170, 196, 204, 210, 238, 240, 245, 255, 272, 280, 294, 336, 340, 357, 392, 408, 420, 476, 490, 510, 560, 588, 595, 680, 714, 735, 784, 816, 833, 840, 952, 980, 1020, 1176, 1190, 1360, 1428, 1470, 1666, 1680, 1785, 1904, 1960, 2040, 2352, 2380, 2499, 2856, 2940, 3332, 3570, 3920, 4080, 4165, 4760, 4998, 5712, 5880, 6664, 7140, 8330, 9520, 9996, 11760, 12495, 13328, 14280, 16660, 19992, 24990, 28560, 33320, 39984, 49980, 66640, 99960, 199920]

約数ペア:

[(1, 199920), (2, 99960), (3, 66640), (4, 49980), (5, 39984), (6, 33320), (7, 28560), (8, 24990), (10, 19992), (12, 16660), (14, 14280), (15, 13328), (16, 12495), (17, 11760), (20, 9996), (21, 9520), (24, 8330), (28, 7140), (30, 6664), (34, 5880), (35, 5712), (40, 4998), (42, 4760), (48, 4165), (49, 4080), (51, 3920), (56, 3570), (60, 3332), (68, 2940), (70, 2856), (80, 2499), (84, 2380), (85, 2352), (98, 2040), (102, 1960), (105, 1904), (112, 1785), (119, 1680), (120, 1666), (136, 1470), (140, 1428), (147, 1360), (168, 1190), (170, 1176), (196, 1020), (204, 980), (210, 952), (238, 840), (240, 833), (245, 816), (255, 784), (272, 735), (280, 714), (294, 680), (336, 595), (340, 588), (357, 560), (392, 510), (408, 490), (420, 476)]