20710690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2069}}^1$

素因数の和:2107

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 29366750

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1430, 2002, 2069, 4138, 5005, 10010, 10345, 14483, 20690, 22759, 26897, 28966, 45518, 53794, 72415, 113795, 134485, 144830, 159313, 188279, 227590, 268970, 295867, 318626, 376558, 591734, 796565, 941395, 1479335, 1593130, 1882790, 2071069, 2958670, 4142138, 10355345, 20710690]

約数ペア:

[(1, 20710690), (2, 10355345), (5, 4142138), (7, 2958670), (10, 2071069), (11, 1882790), (13, 1593130), (14, 1479335), (22, 941395), (26, 796565), (35, 591734), (55, 376558), (65, 318626), (70, 295867), (77, 268970), (91, 227590), (110, 188279), (130, 159313), (143, 144830), (154, 134485), (182, 113795), (286, 72415), (385, 53794), (455, 45518), (715, 28966), (770, 26897), (910, 22759), (1001, 20690), (1430, 14483), (2002, 10345), (2069, 10010), (4138, 5005)]