640175296

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{322669}}^1$

素因数の和:322712

約数の個数: 28

約数和(自身を含む): 1311330880

約数和(自身を除く): 671155584

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 496, 992, 1984, 322669, 645338, 1290676, 2581352, 5162704, 10002739, 10325408, 20005478, 20650816, 40010956, 80021912, 160043824, 320087648, 640175296]

約数ペア:

[(1, 640175296), (2, 320087648), (4, 160043824), (8, 80021912), (16, 40010956), (31, 20650816), (32, 20005478), (62, 10325408), (64, 10002739), (124, 5162704), (248, 2581352), (496, 1290676), (992, 645338), (1984, 322669)]