20169964

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 38707200

約数和(自身を除く): 18537236

約数列:

[1, 2, 4, 29, 31, 58, 62, 71, 79, 116, 124, 142, 158, 284, 316, 899, 1798, 2059, 2201, 2291, 2449, 3596, 4118, 4402, 4582, 4898, 5609, 8236, 8804, 9164, 9796, 11218, 22436, 63829, 71021, 127658, 142042, 162661, 173879, 255316, 284084, 325322, 347758, 650644, 695516, 5042491, 10084982, 20169964]

約数ペア:

[(1, 20169964), (2, 10084982), (4, 5042491), (29, 695516), (31, 650644), (58, 347758), (62, 325322), (71, 284084), (79, 255316), (116, 173879), (124, 162661), (142, 142042), (158, 127658), (284, 71021), (316, 63829), (899, 22436), (1798, 11218), (2059, 9796), (2201, 9164), (2291, 8804), (2449, 8236), (3596, 5609), (4118, 4898), (4402, 4582)]