654997760

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{971}}^1$

素因数の和:1040

約数の個数: 144

約数和(自身を含む): 1716567552

約数和(自身を除く): 1061569792

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 85, 124, 128, 136, 155, 160, 170, 248, 256, 272, 310, 320, 340, 496, 527, 544, 620, 640, 680, 971, 992, 1054, 1088, 1240, 1280, 1360, 1942, 1984, 2108, 2176, 2480, 2635, 2720, 3884, 3968, 4216, 4352, 4855, 4960, 5270, 5440, 7768, 7936, 8432, 9710, 9920, 10540, 10880, 15536, 16507, 16864, 19420, 19840, 21080, 21760, 30101, 31072, 33014, 33728, 38840, 39680, 42160, 60202, 62144, 66028, 67456, 77680, 82535, 84320, 120404, 124288, 132056, 134912, 150505, 155360, 165070, 168640, 240808, 248576, 264112, 301010, 310720, 330140, 337280, 481616, 511717, 528224, 602020, 621440, 660280, 674560, 963232, 1023434, 1056448, 1204040, 1242880, 1320560, 1926464, 2046868, 2112896, 2408080, 2558585, 2641120, 3852928, 4093736, 4225792, 4816160, 5117170, 5282240, 7705856, 8187472, 9632320, 10234340, 10564480, 16374944, 19264640, 20468680, 21128960, 32749888, 38529280, 40937360, 65499776, 81874720, 130999552, 163749440, 327498880, 654997760]

約数ペア:

[(1, 654997760), (2, 327498880), (4, 163749440), (5, 130999552), (8, 81874720), (10, 65499776), (16, 40937360), (17, 38529280), (20, 32749888), (31, 21128960), (32, 20468680), (34, 19264640), (40, 16374944), (62, 10564480), (64, 10234340), (68, 9632320), (80, 8187472), (85, 7705856), (124, 5282240), (128, 5117170), (136, 4816160), (155, 4225792), (160, 4093736), (170, 3852928), (248, 2641120), (256, 2558585), (272, 2408080), (310, 2112896), (320, 2046868), (340, 1926464), (496, 1320560), (527, 1242880), (544, 1204040), (620, 1056448), (640, 1023434), (680, 963232), (971, 674560), (992, 660280), (1054, 621440), (1088, 602020), (1240, 528224), (1280, 511717), (1360, 481616), (1942, 337280), (1984, 330140), (2108, 310720), (2176, 301010), (2480, 264112), (2635, 248576), (2720, 240808), (3884, 168640), (3968, 165070), (4216, 155360), (4352, 150505), (4855, 134912), (4960, 132056), (5270, 124288), (5440, 120404), (7768, 84320), (7936, 82535), (8432, 77680), (9710, 67456), (9920, 66028), (10540, 62144), (10880, 60202), (15536, 42160), (16507, 39680), (16864, 38840), (19420, 33728), (19840, 33014), (21080, 31072), (21760, 30101)]