78120880

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{42457}}^1$

素因数の和:42493

約数の個数: 40

約数和(自身を含む): 189532512

約数和(自身を除く): 111411632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 42457, 84914, 169828, 212285, 339656, 424570, 679312, 849140, 976511, 1698280, 1953022, 3396560, 3906044, 4882555, 7812088, 9765110, 15624176, 19530220, 39060440, 78120880]

約数ペア:

[(1, 78120880), (2, 39060440), (4, 19530220), (5, 15624176), (8, 9765110), (10, 7812088), (16, 4882555), (20, 3906044), (23, 3396560), (40, 1953022), (46, 1698280), (80, 976511), (92, 849140), (115, 679312), (184, 424570), (230, 339656), (368, 212285), (460, 169828), (920, 84914), (1840, 42457)]