164020705

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{809}}^1$

素因数の和:921

約数の個数: 32

約数和(自身を含む): 215550720

約数和(自身を除く): 51530015

約数列:

[1, 5, 23, 41, 43, 115, 205, 215, 809, 943, 989, 1763, 4045, 4715, 4945, 8815, 18607, 33169, 34787, 40549, 93035, 165845, 173935, 202745, 762887, 800101, 1426267, 3814435, 4000505, 7131335, 32804141, 164020705]

約数ペア:

[(1, 164020705), (5, 32804141), (23, 7131335), (41, 4000505), (43, 3814435), (115, 1426267), (205, 800101), (215, 762887), (809, 202745), (943, 173935), (989, 165845), (1763, 93035), (4045, 40549), (4715, 34787), (4945, 33169), (8815, 18607)]