78408960

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{2917}}^1$

素因数の和:2948

約数の個数: 144

約数和(自身を含む): 286290816

約数和(自身を除く): 207881856

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 2917, 3360, 3840, 4480, 5376, 5834, 6720, 8751, 8960, 11668, 13440, 14585, 17502, 20419, 23336, 26880, 29170, 35004, 40838, 43755, 46672, 58340, 61257, 70008, 81676, 87510, 93344, 102095, 116680, 122514, 140016, 163352, 175020, 186688, 204190, 233360, 245028, 280032, 306285, 326704, 350040, 373376, 408380, 466720, 490056, 560064, 612570, 653408, 700080, 746752, 816760, 933440, 980112, 1120128, 1225140, 1306816, 1400160, 1633520, 1866880, 1960224, 2240256, 2450280, 2613632, 2800320, 3267040, 3733760, 3920448, 4900560, 5227264, 5600640, 6534080, 7840896, 9801120, 11201280, 13068160, 15681792, 19602240, 26136320, 39204480, 78408960]

約数ペア:

[(1, 78408960), (2, 39204480), (3, 26136320), (4, 19602240), (5, 15681792), (6, 13068160), (7, 11201280), (8, 9801120), (10, 7840896), (12, 6534080), (14, 5600640), (15, 5227264), (16, 4900560), (20, 3920448), (21, 3733760), (24, 3267040), (28, 2800320), (30, 2613632), (32, 2450280), (35, 2240256), (40, 1960224), (42, 1866880), (48, 1633520), (56, 1400160), (60, 1306816), (64, 1225140), (70, 1120128), (80, 980112), (84, 933440), (96, 816760), (105, 746752), (112, 700080), (120, 653408), (128, 612570), (140, 560064), (160, 490056), (168, 466720), (192, 408380), (210, 373376), (224, 350040), (240, 326704), (256, 306285), (280, 280032), (320, 245028), (336, 233360), (384, 204190), (420, 186688), (448, 175020), (480, 163352), (560, 140016), (640, 122514), (672, 116680), (768, 102095), (840, 93344), (896, 87510), (960, 81676), (1120, 70008), (1280, 61257), (1344, 58340), (1680, 46672), (1792, 43755), (1920, 40838), (2240, 35004), (2688, 29170), (2917, 26880), (3360, 23336), (3840, 20419), (4480, 17502), (5376, 14585), (5834, 13440), (6720, 11668), (8751, 8960)]