40890178

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1327}}^1$

素因数の和:1438

約数の個数: 32

約数和(自身を含む): 73433088

約数和(自身を除く): 32542910

約数列:

[1, 2, 7, 14, 31, 62, 71, 142, 217, 434, 497, 994, 1327, 2201, 2654, 4402, 9289, 15407, 18578, 30814, 41137, 82274, 94217, 188434, 287959, 575918, 659519, 1319038, 2920727, 5841454, 20445089, 40890178]

約数ペア:

[(1, 40890178), (2, 20445089), (7, 5841454), (14, 2920727), (31, 1319038), (62, 659519), (71, 575918), (142, 287959), (217, 188434), (434, 94217), (497, 82274), (994, 41137), (1327, 30814), (2201, 18578), (2654, 15407), (4402, 9289)]