638856960

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{23767}}^1$

素因数の和:23798

約数の個数: 144

約数和(自身を含む): 2331926016

約数和(自身を除く): 1693069056

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, 3360, 3840, 4480, 5376, 6720, 8960, 13440, 23767, 26880, 47534, 71301, 95068, 118835, 142602, 166369, 190136, 237670, 285204, 332738, 356505, 380272, 475340, 499107, 570408, 665476, 713010, 760544, 831845, 950680, 998214, 1140816, 1330952, 1426020, 1521088, 1663690, 1901360, 1996428, 2281632, 2495535, 2661904, 2852040, 3042176, 3327380, 3802720, 3992856, 4563264, 4991070, 5323808, 5704080, 6084352, 6654760, 7605440, 7985712, 9126528, 9982140, 10647616, 11408160, 13309520, 15210880, 15971424, 18253056, 19964280, 21295232, 22816320, 26619040, 30421760, 31942848, 39928560, 42590464, 45632640, 53238080, 63885696, 79857120, 91265280, 106476160, 127771392, 159714240, 212952320, 319428480, 638856960]

約数ペア:

[(1, 638856960), (2, 319428480), (3, 212952320), (4, 159714240), (5, 127771392), (6, 106476160), (7, 91265280), (8, 79857120), (10, 63885696), (12, 53238080), (14, 45632640), (15, 42590464), (16, 39928560), (20, 31942848), (21, 30421760), (24, 26619040), (28, 22816320), (30, 21295232), (32, 19964280), (35, 18253056), (40, 15971424), (42, 15210880), (48, 13309520), (56, 11408160), (60, 10647616), (64, 9982140), (70, 9126528), (80, 7985712), (84, 7605440), (96, 6654760), (105, 6084352), (112, 5704080), (120, 5323808), (128, 4991070), (140, 4563264), (160, 3992856), (168, 3802720), (192, 3327380), (210, 3042176), (224, 2852040), (240, 2661904), (256, 2495535), (280, 2281632), (320, 1996428), (336, 1901360), (384, 1663690), (420, 1521088), (448, 1426020), (480, 1330952), (560, 1140816), (640, 998214), (672, 950680), (768, 831845), (840, 760544), (896, 713010), (960, 665476), (1120, 570408), (1280, 499107), (1344, 475340), (1680, 380272), (1792, 356505), (1920, 332738), (2240, 285204), (2688, 237670), (3360, 190136), (3840, 166369), (4480, 142602), (5376, 118835), (6720, 95068), (8960, 71301), (13440, 47534), (23767, 26880)]