164781505

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1\times {\mathrm{421}}^1$

素因数の和:697

約数の個数: 32

約数和(自身を含む): 231890688

約数和(自身を除く): 67109183

約数列:

[1, 5, 7, 35, 53, 211, 265, 371, 421, 1055, 1477, 1855, 2105, 2947, 7385, 11183, 14735, 22313, 55915, 78281, 88831, 111565, 156191, 391405, 444155, 621817, 780955, 3109085, 4708043, 23540215, 32956301, 164781505]

約数ペア:

[(1, 164781505), (5, 32956301), (7, 23540215), (35, 4708043), (53, 3109085), (211, 780955), (265, 621817), (371, 444155), (421, 391405), (1055, 156191), (1477, 111565), (1855, 88831), (2105, 78281), (2947, 55915), (7385, 22313), (11183, 14735)]