638032576

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{18917}}^1$

素因数の和:18977

約数の個数: 56

約数和(自身を含む): 1383889536

約数和(自身を除く): 745856960

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 64, 68, 124, 136, 248, 272, 496, 527, 544, 992, 1054, 1088, 1984, 2108, 4216, 8432, 16864, 18917, 33728, 37834, 75668, 151336, 302672, 321589, 586427, 605344, 643178, 1172854, 1210688, 1286356, 2345708, 2572712, 4691416, 5145424, 9382832, 9969259, 10290848, 18765664, 19938518, 20581696, 37531328, 39877036, 79754072, 159508144, 319016288, 638032576]

約数ペア:

[(1, 638032576), (2, 319016288), (4, 159508144), (8, 79754072), (16, 39877036), (17, 37531328), (31, 20581696), (32, 19938518), (34, 18765664), (62, 10290848), (64, 9969259), (68, 9382832), (124, 5145424), (136, 4691416), (248, 2572712), (272, 2345708), (496, 1286356), (527, 1210688), (544, 1172854), (992, 643178), (1054, 605344), (1088, 586427), (1984, 321589), (2108, 302672), (4216, 151336), (8432, 75668), (16864, 37834), (18917, 33728)]