81988144

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^3\times {\mathrm{149}}^1$

素因数の和:215

約数の個数: 80

約数和(自身を含む): 194184000

約数和(自身を除く): 112195856

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 149, 238, 272, 289, 298, 476, 578, 596, 952, 1043, 1156, 1192, 1904, 2023, 2086, 2312, 2384, 2533, 4046, 4172, 4624, 4913, 5066, 8092, 8344, 9826, 10132, 16184, 16688, 17731, 19652, 20264, 32368, 34391, 35462, 39304, 40528, 43061, 68782, 70924, 78608, 86122, 137564, 141848, 172244, 275128, 283696, 301427, 344488, 550256, 602854, 688976, 732037, 1205708, 1464074, 2411416, 2928148, 4822832, 5124259, 5856296, 10248518, 11712592, 20497036, 40994072, 81988144]

約数ペア:

[(1, 81988144), (2, 40994072), (4, 20497036), (7, 11712592), (8, 10248518), (14, 5856296), (16, 5124259), (17, 4822832), (28, 2928148), (34, 2411416), (56, 1464074), (68, 1205708), (112, 732037), (119, 688976), (136, 602854), (149, 550256), (238, 344488), (272, 301427), (289, 283696), (298, 275128), (476, 172244), (578, 141848), (596, 137564), (952, 86122), (1043, 78608), (1156, 70924), (1192, 68782), (1904, 43061), (2023, 40528), (2086, 39304), (2312, 35462), (2384, 34391), (2533, 32368), (4046, 20264), (4172, 19652), (4624, 17731), (4913, 16688), (5066, 16184), (8092, 10132), (8344, 9826)]