20197252016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{169919}}^1$

素因数の和:169986

約数の個数: 80

約数和(自身を含む): 45511372800

約数和(自身を除く): 25314120784

約数列:

[1, 2, 4, 8, 16, 17, 19, 23, 34, 38, 46, 68, 76, 92, 136, 152, 184, 272, 304, 323, 368, 391, 437, 646, 782, 874, 1292, 1564, 1748, 2584, 3128, 3496, 5168, 6256, 6992, 7429, 14858, 29716, 59432, 118864, 169919, 339838, 679676, 1359352, 2718704, 2888623, 3228461, 3908137, 5777246, 6456922, 7816274, 11554492, 12913844, 15632548, 23108984, 25827688, 31265096, 46217968, 51655376, 54883837, 62530192, 66438329, 74254603, 109767674, 132876658, 148509206, 219535348, 265753316, 297018412, 439070696, 531506632, 594036824, 878141392, 1063013264, 1188073648, 1262328251, 2524656502, 5049313004, 10098626008, 20197252016]

約数ペア:

[(1, 20197252016), (2, 10098626008), (4, 5049313004), (8, 2524656502), (16, 1262328251), (17, 1188073648), (19, 1063013264), (23, 878141392), (34, 594036824), (38, 531506632), (46, 439070696), (68, 297018412), (76, 265753316), (92, 219535348), (136, 148509206), (152, 132876658), (184, 109767674), (272, 74254603), (304, 66438329), (323, 62530192), (368, 54883837), (391, 51655376), (437, 46217968), (646, 31265096), (782, 25827688), (874, 23108984), (1292, 15632548), (1564, 12913844), (1748, 11554492), (2584, 7816274), (3128, 6456922), (3496, 5777246), (5168, 3908137), (6256, 3228461), (6992, 2888623), (7429, 2718704), (14858, 1359352), (29716, 679676), (59432, 339838), (118864, 169919)]