20934485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:138

約数の個数: 64

約数和(自身を含む): 32901120

約数和(自身を除く): 11966635

約数列:

[1, 5, 11, 13, 19, 23, 55, 65, 67, 95, 115, 143, 209, 247, 253, 299, 335, 437, 715, 737, 871, 1045, 1235, 1265, 1273, 1495, 1541, 2185, 2717, 3289, 3685, 4355, 4807, 5681, 6365, 7705, 9581, 13585, 14003, 16445, 16549, 16951, 20033, 24035, 28405, 29279, 47905, 62491, 70015, 82745, 84755, 100165, 146395, 182039, 220363, 312455, 322069, 380627, 910195, 1101815, 1610345, 1903135, 4186897, 20934485]

約数ペア:

[(1, 20934485), (5, 4186897), (11, 1903135), (13, 1610345), (19, 1101815), (23, 910195), (55, 380627), (65, 322069), (67, 312455), (95, 220363), (115, 182039), (143, 146395), (209, 100165), (247, 84755), (253, 82745), (299, 70015), (335, 62491), (437, 47905), (715, 29279), (737, 28405), (871, 24035), (1045, 20033), (1235, 16951), (1265, 16549), (1273, 16445), (1495, 14003), (1541, 13585), (2185, 9581), (2717, 7705), (3289, 6365), (3685, 5681), (4355, 4807)]