20138289430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{71761}}^1$

素因数の和:72005

約数の個数: 64

約数和(自身を含む): 43815006720

約数和(自身を除く): 23676717290

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 211, 266, 422, 665, 1055, 1330, 1477, 2110, 2954, 4009, 7385, 8018, 14770, 20045, 28063, 40090, 56126, 71761, 140315, 143522, 280630, 358805, 502327, 717610, 1004654, 1363459, 2511635, 2726918, 5023270, 6817295, 9544213, 13634590, 15141571, 19088426, 30283142, 47721065, 75707855, 95442130, 105990997, 151415710, 211981994, 287689849, 529954985, 575379698, 1059909970, 1438449245, 2013828943, 2876898490, 4027657886, 10069144715, 20138289430]

約数ペア:

[(1, 20138289430), (2, 10069144715), (5, 4027657886), (7, 2876898490), (10, 2013828943), (14, 1438449245), (19, 1059909970), (35, 575379698), (38, 529954985), (70, 287689849), (95, 211981994), (133, 151415710), (190, 105990997), (211, 95442130), (266, 75707855), (422, 47721065), (665, 30283142), (1055, 19088426), (1330, 15141571), (1477, 13634590), (2110, 9544213), (2954, 6817295), (4009, 5023270), (7385, 2726918), (8018, 2511635), (14770, 1363459), (20045, 1004654), (28063, 717610), (40090, 502327), (56126, 358805), (71761, 280630), (140315, 143522)]