400870680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{20749}}^1$

素因数の和:20793

約数の個数: 128

約数和(自身を含む): 1434240000

約数和(自身を除く): 1033369320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 1288, 1380, 1610, 1932, 2415, 2760, 3220, 3864, 4830, 6440, 9660, 19320, 20749, 41498, 62247, 82996, 103745, 124494, 145243, 165992, 207490, 248988, 290486, 311235, 414980, 435729, 477227, 497976, 580972, 622470, 726215, 829960, 871458, 954454, 1161944, 1244940, 1431681, 1452430, 1742916, 1908908, 2178645, 2386135, 2489880, 2863362, 2904860, 3340589, 3485832, 3817816, 4357290, 4772270, 5726724, 5809720, 6681178, 7158405, 8714580, 9544540, 10021767, 11453448, 13362356, 14316810, 16702945, 17429160, 19089080, 20043534, 26724712, 28633620, 33405890, 40087068, 50108835, 57267240, 66811780, 80174136, 100217670, 133623560, 200435340, 400870680]

約数ペア:

[(1, 400870680), (2, 200435340), (3, 133623560), (4, 100217670), (5, 80174136), (6, 66811780), (7, 57267240), (8, 50108835), (10, 40087068), (12, 33405890), (14, 28633620), (15, 26724712), (20, 20043534), (21, 19089080), (23, 17429160), (24, 16702945), (28, 14316810), (30, 13362356), (35, 11453448), (40, 10021767), (42, 9544540), (46, 8714580), (56, 7158405), (60, 6681178), (69, 5809720), (70, 5726724), (84, 4772270), (92, 4357290), (105, 3817816), (115, 3485832), (120, 3340589), (138, 2904860), (140, 2863362), (161, 2489880), (168, 2386135), (184, 2178645), (210, 1908908), (230, 1742916), (276, 1452430), (280, 1431681), (322, 1244940), (345, 1161944), (420, 954454), (460, 871458), (483, 829960), (552, 726215), (644, 622470), (690, 580972), (805, 497976), (840, 477227), (920, 435729), (966, 414980), (1288, 311235), (1380, 290486), (1610, 248988), (1932, 207490), (2415, 165992), (2760, 145243), (3220, 124494), (3864, 103745), (4830, 82996), (6440, 62247), (9660, 41498), (19320, 20749)]