20042915

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:271

約数の個数: 32

約数和(自身を含む): 27060480

約数和(自身を除く): 7017565

約数列:

[1, 5, 17, 29, 47, 85, 145, 173, 235, 493, 799, 865, 1363, 2465, 2941, 3995, 5017, 6815, 8131, 14705, 23171, 25085, 40655, 85289, 115855, 138227, 235799, 426445, 691135, 1178995, 4008583, 20042915]

約数ペア:

[(1, 20042915), (5, 4008583), (17, 1178995), (29, 691135), (47, 426445), (85, 235799), (145, 138227), (173, 115855), (235, 85289), (493, 40655), (799, 25085), (865, 23171), (1363, 14705), (2465, 8131), (2941, 6815), (3995, 5017)]