20312857565

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{66533}}^1$

素因数の和:66630

約数の個数: 64

約数和(自身を含む): 33264870912

約数和(自身を除く): 12952013347

約数列:

[1, 5, 7, 11, 13, 35, 55, 61, 65, 77, 91, 143, 305, 385, 427, 455, 671, 715, 793, 1001, 2135, 3355, 3965, 4697, 5005, 5551, 8723, 23485, 27755, 43615, 61061, 66533, 305305, 332665, 465731, 731863, 864929, 2328655, 3659315, 4058513, 4324645, 5123041, 6054503, 9514219, 20292565, 25615205, 28409591, 30272515, 44643643, 47571095, 52760669, 66599533, 142047955, 223218215, 263803345, 312505501, 332997665, 369324683, 580367359, 1562527505, 1846623415, 2901836795, 4062571513, 20312857565]

約数ペア:

[(1, 20312857565), (5, 4062571513), (7, 2901836795), (11, 1846623415), (13, 1562527505), (35, 580367359), (55, 369324683), (61, 332997665), (65, 312505501), (77, 263803345), (91, 223218215), (143, 142047955), (305, 66599533), (385, 52760669), (427, 47571095), (455, 44643643), (671, 30272515), (715, 28409591), (793, 25615205), (1001, 20292565), (2135, 9514219), (3355, 6054503), (3965, 5123041), (4697, 4324645), (5005, 4058513), (5551, 3659315), (8723, 2328655), (23485, 864929), (27755, 731863), (43615, 465731), (61061, 332665), (66533, 305305)]