81874720

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{971}}^1$

素因数の和:1034

約数の個数: 96

約数和(自身を含む): 211631616

約数和(自身を除く): 129756896

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 68, 80, 85, 124, 136, 155, 160, 170, 248, 272, 310, 340, 496, 527, 544, 620, 680, 971, 992, 1054, 1240, 1360, 1942, 2108, 2480, 2635, 2720, 3884, 4216, 4855, 4960, 5270, 7768, 8432, 9710, 10540, 15536, 16507, 16864, 19420, 21080, 30101, 31072, 33014, 38840, 42160, 60202, 66028, 77680, 82535, 84320, 120404, 132056, 150505, 155360, 165070, 240808, 264112, 301010, 330140, 481616, 511717, 528224, 602020, 660280, 963232, 1023434, 1204040, 1320560, 2046868, 2408080, 2558585, 2641120, 4093736, 4816160, 5117170, 8187472, 10234340, 16374944, 20468680, 40937360, 81874720]

約数ペア:

[(1, 81874720), (2, 40937360), (4, 20468680), (5, 16374944), (8, 10234340), (10, 8187472), (16, 5117170), (17, 4816160), (20, 4093736), (31, 2641120), (32, 2558585), (34, 2408080), (40, 2046868), (62, 1320560), (68, 1204040), (80, 1023434), (85, 963232), (124, 660280), (136, 602020), (155, 528224), (160, 511717), (170, 481616), (248, 330140), (272, 301010), (310, 264112), (340, 240808), (496, 165070), (527, 155360), (544, 150505), (620, 132056), (680, 120404), (971, 84320), (992, 82535), (1054, 77680), (1240, 66028), (1360, 60202), (1942, 42160), (2108, 38840), (2480, 33014), (2635, 31072), (2720, 30101), (3884, 21080), (4216, 19420), (4855, 16864), (4960, 16507), (5270, 15536), (7768, 10540), (8432, 9710)]