142029440

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{647}}^1$

素因数の和:687

約数の個数: 128

約数和(自身を含む): 396576000

約数和(自身を除く): 254546560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 280, 320, 343, 392, 448, 490, 560, 640, 647, 686, 784, 896, 980, 1120, 1294, 1372, 1568, 1715, 1960, 2240, 2588, 2744, 3136, 3235, 3430, 3920, 4480, 4529, 5176, 5488, 6272, 6470, 6860, 7840, 9058, 10352, 10976, 12940, 13720, 15680, 18116, 20704, 21952, 22645, 25880, 27440, 31360, 31703, 36232, 41408, 43904, 45290, 51760, 54880, 63406, 72464, 82816, 90580, 103520, 109760, 126812, 144928, 158515, 181160, 207040, 219520, 221921, 253624, 289856, 317030, 362320, 414080, 443842, 507248, 579712, 634060, 724640, 887684, 1014496, 1109605, 1268120, 1449280, 1775368, 2028992, 2219210, 2536240, 2898560, 3550736, 4057984, 4438420, 5072480, 7101472, 8876840, 10144960, 14202944, 17753680, 20289920, 28405888, 35507360, 71014720, 142029440]

約数ペア:

[(1, 142029440), (2, 71014720), (4, 35507360), (5, 28405888), (7, 20289920), (8, 17753680), (10, 14202944), (14, 10144960), (16, 8876840), (20, 7101472), (28, 5072480), (32, 4438420), (35, 4057984), (40, 3550736), (49, 2898560), (56, 2536240), (64, 2219210), (70, 2028992), (80, 1775368), (98, 1449280), (112, 1268120), (128, 1109605), (140, 1014496), (160, 887684), (196, 724640), (224, 634060), (245, 579712), (280, 507248), (320, 443842), (343, 414080), (392, 362320), (448, 317030), (490, 289856), (560, 253624), (640, 221921), (647, 219520), (686, 207040), (784, 181160), (896, 158515), (980, 144928), (1120, 126812), (1294, 109760), (1372, 103520), (1568, 90580), (1715, 82816), (1960, 72464), (2240, 63406), (2588, 54880), (2744, 51760), (3136, 45290), (3235, 43904), (3430, 41408), (3920, 36232), (4480, 31703), (4529, 31360), (5176, 27440), (5488, 25880), (6272, 22645), (6470, 21952), (6860, 20704), (7840, 18116), (9058, 15680), (10352, 13720), (10976, 12940)]