20384188

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{659}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 42134400

約数和(自身を除く): 21750212

約数列:

[1, 2, 4, 11, 19, 22, 37, 38, 44, 74, 76, 148, 209, 407, 418, 659, 703, 814, 836, 1318, 1406, 1628, 2636, 2812, 7249, 7733, 12521, 14498, 15466, 24383, 25042, 28996, 30932, 48766, 50084, 97532, 137731, 268213, 275462, 463277, 536426, 550924, 926554, 1072852, 1853108, 5096047, 10192094, 20384188]

約数ペア:

[(1, 20384188), (2, 10192094), (4, 5096047), (11, 1853108), (19, 1072852), (22, 926554), (37, 550924), (38, 536426), (44, 463277), (74, 275462), (76, 268213), (148, 137731), (209, 97532), (407, 50084), (418, 48766), (659, 30932), (703, 28996), (814, 25042), (836, 24383), (1318, 15466), (1406, 14498), (1628, 12521), (2636, 7733), (2812, 7249)]