20185778888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{34499}}^1$

素因数の和:34686

約数の個数: 64

約数和(自身を含む): 42352200000

約数和(自身を除く): 22166421112

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 109, 122, 218, 244, 436, 488, 671, 872, 1199, 1342, 2398, 2684, 4796, 5368, 6649, 9592, 13298, 26596, 34499, 53192, 68998, 73139, 137996, 146278, 275992, 292556, 379489, 585112, 758978, 1517956, 2104439, 3035912, 3760391, 4208878, 7520782, 8417756, 15041564, 16835512, 23148829, 30083128, 41364301, 46297658, 82728602, 92595316, 165457204, 185190632, 229383851, 330914408, 458767702, 917535404, 1835070808, 2523222361, 5046444722, 10092889444, 20185778888]

約数ペア:

[(1, 20185778888), (2, 10092889444), (4, 5046444722), (8, 2523222361), (11, 1835070808), (22, 917535404), (44, 458767702), (61, 330914408), (88, 229383851), (109, 185190632), (122, 165457204), (218, 92595316), (244, 82728602), (436, 46297658), (488, 41364301), (671, 30083128), (872, 23148829), (1199, 16835512), (1342, 15041564), (2398, 8417756), (2684, 7520782), (4796, 4208878), (5368, 3760391), (6649, 3035912), (9592, 2104439), (13298, 1517956), (26596, 758978), (34499, 585112), (53192, 379489), (68998, 292556), (73139, 275992), (137996, 146278)]