71307520

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 188742960

約数和(自身を除く): 117435440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 29, 32, 34, 40, 58, 64, 68, 80, 85, 113, 116, 128, 136, 145, 160, 170, 226, 232, 256, 272, 290, 320, 340, 452, 464, 493, 544, 565, 580, 640, 680, 904, 928, 986, 1088, 1130, 1160, 1280, 1360, 1808, 1856, 1921, 1972, 2176, 2260, 2320, 2465, 2720, 3277, 3616, 3712, 3842, 3944, 4352, 4520, 4640, 4930, 5440, 6554, 7232, 7424, 7684, 7888, 9040, 9280, 9605, 9860, 10880, 13108, 14464, 15368, 15776, 16385, 18080, 18560, 19210, 19720, 21760, 26216, 28928, 30736, 31552, 32770, 36160, 37120, 38420, 39440, 52432, 55709, 61472, 63104, 65540, 72320, 76840, 78880, 104864, 111418, 122944, 126208, 131080, 144640, 153680, 157760, 209728, 222836, 245888, 262160, 278545, 307360, 315520, 419456, 445672, 491776, 524320, 557090, 614720, 631040, 838912, 891344, 1048640, 1114180, 1229440, 1782688, 2097280, 2228360, 2458880, 3565376, 4194560, 4456720, 7130752, 8913440, 14261504, 17826880, 35653760, 71307520]

約数ペア:

[(1, 71307520), (2, 35653760), (4, 17826880), (5, 14261504), (8, 8913440), (10, 7130752), (16, 4456720), (17, 4194560), (20, 3565376), (29, 2458880), (32, 2228360), (34, 2097280), (40, 1782688), (58, 1229440), (64, 1114180), (68, 1048640), (80, 891344), (85, 838912), (113, 631040), (116, 614720), (128, 557090), (136, 524320), (145, 491776), (160, 445672), (170, 419456), (226, 315520), (232, 307360), (256, 278545), (272, 262160), (290, 245888), (320, 222836), (340, 209728), (452, 157760), (464, 153680), (493, 144640), (544, 131080), (565, 126208), (580, 122944), (640, 111418), (680, 104864), (904, 78880), (928, 76840), (986, 72320), (1088, 65540), (1130, 63104), (1160, 61472), (1280, 55709), (1360, 52432), (1808, 39440), (1856, 38420), (1921, 37120), (1972, 36160), (2176, 32770), (2260, 31552), (2320, 30736), (2465, 28928), (2720, 26216), (3277, 21760), (3616, 19720), (3712, 19210), (3842, 18560), (3944, 18080), (4352, 16385), (4520, 15776), (4640, 15368), (4930, 14464), (5440, 13108), (6554, 10880), (7232, 9860), (7424, 9605), (7684, 9280), (7888, 9040)]