664343840

素因数分解:

$2^5\times 5^1\times {\mathrm{191}}^1\times {\mathrm{21739}}^1$

素因数の和:21945

約数の個数: 48

約数和(自身を含む): 1577802240

約数和(自身を除く): 913458400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 191, 382, 764, 955, 1528, 1910, 3056, 3820, 6112, 7640, 15280, 21739, 30560, 43478, 86956, 108695, 173912, 217390, 347824, 434780, 695648, 869560, 1739120, 3478240, 4152149, 8304298, 16608596, 20760745, 33217192, 41521490, 66434384, 83042980, 132868768, 166085960, 332171920, 664343840]

約数ペア:

[(1, 664343840), (2, 332171920), (4, 166085960), (5, 132868768), (8, 83042980), (10, 66434384), (16, 41521490), (20, 33217192), (32, 20760745), (40, 16608596), (80, 8304298), (160, 4152149), (191, 3478240), (382, 1739120), (764, 869560), (955, 695648), (1528, 434780), (1910, 347824), (3056, 217390), (3820, 173912), (6112, 108695), (7640, 86956), (15280, 43478), (21739, 30560)]