78659680

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{239}}^1$

素因数の和:293

約数の個数: 144

約数和(自身を含む): 217183680

約数和(自身を除く): 138524000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 68, 80, 85, 88, 110, 121, 136, 160, 170, 176, 187, 220, 239, 242, 272, 340, 352, 374, 440, 478, 484, 544, 605, 680, 748, 880, 935, 956, 968, 1195, 1210, 1360, 1496, 1760, 1870, 1912, 1936, 2057, 2390, 2420, 2629, 2720, 2992, 3740, 3824, 3872, 4063, 4114, 4780, 4840, 5258, 5984, 7480, 7648, 8126, 8228, 9560, 9680, 10285, 10516, 13145, 14960, 16252, 16456, 19120, 19360, 20315, 20570, 21032, 26290, 28919, 29920, 32504, 32912, 38240, 40630, 41140, 42064, 44693, 52580, 57838, 65008, 65824, 81260, 82280, 84128, 89386, 105160, 115676, 130016, 144595, 162520, 164560, 178772, 210320, 223465, 231352, 289190, 325040, 329120, 357544, 420640, 446930, 462704, 491623, 578380, 650080, 715088, 893860, 925408, 983246, 1156760, 1430176, 1787720, 1966492, 2313520, 2458115, 3575440, 3932984, 4627040, 4916230, 7150880, 7865968, 9832460, 15731936, 19664920, 39329840, 78659680]

約数ペア:

[(1, 78659680), (2, 39329840), (4, 19664920), (5, 15731936), (8, 9832460), (10, 7865968), (11, 7150880), (16, 4916230), (17, 4627040), (20, 3932984), (22, 3575440), (32, 2458115), (34, 2313520), (40, 1966492), (44, 1787720), (55, 1430176), (68, 1156760), (80, 983246), (85, 925408), (88, 893860), (110, 715088), (121, 650080), (136, 578380), (160, 491623), (170, 462704), (176, 446930), (187, 420640), (220, 357544), (239, 329120), (242, 325040), (272, 289190), (340, 231352), (352, 223465), (374, 210320), (440, 178772), (478, 164560), (484, 162520), (544, 144595), (605, 130016), (680, 115676), (748, 105160), (880, 89386), (935, 84128), (956, 82280), (968, 81260), (1195, 65824), (1210, 65008), (1360, 57838), (1496, 52580), (1760, 44693), (1870, 42064), (1912, 41140), (1936, 40630), (2057, 38240), (2390, 32912), (2420, 32504), (2629, 29920), (2720, 28919), (2992, 26290), (3740, 21032), (3824, 20570), (3872, 20315), (4063, 19360), (4114, 19120), (4780, 16456), (4840, 16252), (5258, 14960), (5984, 13145), (7480, 10516), (7648, 10285), (8126, 9680), (8228, 9560)]