19460870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:501

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 23117050

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 31, 55, 62, 65, 110, 130, 143, 155, 286, 310, 341, 403, 439, 682, 715, 806, 878, 1430, 1705, 2015, 2195, 3410, 4030, 4390, 4433, 4829, 5707, 8866, 9658, 11414, 13609, 22165, 24145, 27218, 28535, 44330, 48290, 57070, 62777, 68045, 125554, 136090, 149699, 176917, 299398, 313885, 353834, 627770, 748495, 884585, 1496990, 1769170, 1946087, 3892174, 9730435, 19460870]

約数ペア:

[(1, 19460870), (2, 9730435), (5, 3892174), (10, 1946087), (11, 1769170), (13, 1496990), (22, 884585), (26, 748495), (31, 627770), (55, 353834), (62, 313885), (65, 299398), (110, 176917), (130, 149699), (143, 136090), (155, 125554), (286, 68045), (310, 62777), (341, 57070), (403, 48290), (439, 44330), (682, 28535), (715, 27218), (806, 24145), (878, 22165), (1430, 13609), (1705, 11414), (2015, 9658), (2195, 8866), (3410, 5707), (4030, 4829), (4390, 4433)]