19523980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139457}}^1$

素因数の和:139473

約数の個数: 24

約数和(自身を含む): 46857888

約数和(自身を除く): 27333908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 139457, 278914, 557828, 697285, 976199, 1394570, 1952398, 2789140, 3904796, 4880995, 9761990, 19523980]

約数ペア:

[(1, 19523980), (2, 9761990), (4, 4880995), (5, 3904796), (7, 2789140), (10, 1952398), (14, 1394570), (20, 976199), (28, 697285), (35, 557828), (70, 278914), (140, 139457)]