19968130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21943}}^1$

素因数の和:21970

約数の個数: 32

約数和(自身を含む): 44239104

約数和(自身を除く): 24270974

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 21943, 43886, 109715, 153601, 219430, 285259, 307202, 570518, 768005, 1426295, 1536010, 1996813, 2852590, 3993626, 9984065, 19968130]

約数ペア:

[(1, 19968130), (2, 9984065), (5, 3993626), (7, 2852590), (10, 1996813), (13, 1536010), (14, 1426295), (26, 768005), (35, 570518), (65, 307202), (70, 285259), (91, 219430), (130, 153601), (182, 109715), (455, 43886), (910, 21943)]